It wasnt too busy but thats alright with me because the service was great and the coffee amazing. The. Mocha I got was not too sweet and perfectly balanced.

Excellent drinks and atmosphere. McKenna was helpful and friendly. Would come back.

We got the nutty astronaut and cosmic energy. The nutty astronaut had a good chocolate peanut flavor that was very different but so good! Cosmic energy lets you mix in flavors with an energy drink, I got apple/blue raspberry the first time and then peach/passion fruit on my second visit. They were both very good and had a nice fresh fruity flavor.Special thanks to the barista, Makenna, who helped us and patiently answered all our questions.The only downside is that they typically only have one barista on duty, so dont be in any hurry if there are other customers.

I’ve had the best coffee drinks in town at this place. I got the Nova today which is an Irish creme breve and it was incredible! The man working there was super nice & helpful and told me that I should write more positive reviews instead of just negative ones so here I am! 😉

Really really good coffee drinks! We drive 30 minutes to Boulder just to get a coffee. Only reason it’s not 5 stars - horrible hours. Not opening until 11a on Saturday (when farmers market opens at 8) is a missed opportunity. We have also driven there and found them to be closed during hours posted as open.

Great coffee and coffee drinks. Love that you can get them hot, iced or blended. One of my favorite places. Hours a little weird but I always stop by when in Boulder.

Perfect spot to grab a drink when you’re downtown. I love that they offer energy drink options. I always get the cosmic energy it’s great in the summer heat!

Absolutely adore this spot, 10/10 recommend. Delicious drinks, cool ambiance, & great staff. Try Brian’s secret latte concoction, it’s my go to!

Cute new spot for hot and cold drinks... also saw some delicious looking pastries at check out. Lots and lots of options and very friendly staff

As someone who has a bit of an obsession with coffee shops I couldn’t be more impressed with the service, extensive menu and quick preparation offered at Astro. Being a coffee house junky as well as an avid traveler I have had the opportunity to experience coffee shops across the country and around the globe. It is rare to find a coffee shop that offers such a robust menu while still not sacrificing quality and attention to detail in the preparation of their beverages. Astro does just that. It is clear that each cup is carefully crafted and each drink option on the menu provides its own distinctive flavor from bold, perhaps even revolutionary, combinations. I could not be more impressed with the balance they have achieved in each drink, in particular their espresso roast. I have never had a cup where the acidity is diminished to perfection allowing its bittersweet flavors to emerge. The barista has clearly mastered his craft drawing the most out of their high grade selection of beans...Astro is truly a treasure and is perhaps my favorite in the US. Needless to say, I will be back.

Highly recommend this place!!!!! Came last week for the first time and itll definitely become my new go-to spot. Its like a local Dutch Bros with a ton of cool coffee & non-coffee drinks. My favorite is the White Chocolate Eclipse with an extra shot. Steve, the owner, is awesome and has the cutest golden retriever named Frankie.

My favorite little coffee shop. The menu is extravagant, as Alan who loves flavors in coffee- and sugar- there is No lack of deliciously varied drinks for any and all occasions. Cute store in the heart of downtown pearl, with staff that care about a mean cup of joe. 10/10, go treat your tastebuds.

Stopped by this coffee shop on my way to Pearl St. and the drink (called the Nutty Astronaut I think?) is absolutely delicious. The owner is an awesome dude and knows his coffee. Found a new spot for my regular coffee!

Walked up at 11:30 a.m. on Sunday. Hours say they open at 11. Open signs were on. Door was locked with no one inside and no other signage. We liked this place in the past, but will not be coming back after this.

We stumbled on this place last year and now we cant stay away. Its perfectly situated to enjoy people watching in downtown Boulder, and the drink selection is grand. The baristas know their stuff. I havent landed on my favorite drink yet because they are all delicious!

Great atmosphere, great service, great drinks. Theres traditional coffee drinks on drip, as well as espresso, but theres a unique selection of coffee drinks that you wont find elsewhere. Im not normally a flavored coffee drink person but I was convinced to try the Nutty Astronaut and I was not disappointed. Really enjoyable place with indoor seating and places to plug in

Great coffee and tea.

Great coffee bar off Pearl Street. You can see everything that the barista is doing, which was neat. The latte drinks were amazing. I think the secret ingredient was the steamed chocolate milk. So good. Will be returning when we are back in the area!

I live an hour away and whenever I pop into Boulder this is my go to!! Amazing coffee and excellent customer service!!

New coffee bar in town and it’s legit!I tried the Nutty Astronaut - great balance of flavor, very smooth, and the perfect amount of richness - highly recommend!I also tried the Cosmic Energy - a non coffee option that is essentially a Red Bull smoothie - highly recommend for the hot summer days here in Boulder!The space is very clean and fresh. Less than a block from pearl. With some nice outdoor seating options.The owner Steve is very kind, welcoming, and very passionate about coffee!

Signature drinks are my go-to. Best coffee in Boulder I always go here if I’m in the downtown area

Really cool place with a cute dog called Frankie. It’s also on the sunny side of the street which is a perfect place to chill. Will come back soon

I worked as a barista for two years, so I am very selective with coffee. I stopped by Astro last week and ordered an iced coffee. It was amazing! I actually felt a caffeine buzz from the espresso, which is rare for me! I came back two days later for another iced coffee before work. This is my favorite, new go-to place in Boulder.

Just kind of sad since I came about 10-15 minutes before they closed at 4, but the door was locked and the open sign was turned off. It appears they closed early, and I bike 20 minutes to finally try this place out :(

Never coming back again. We got the matcha latte. It tasted like milk with a hint of matcha. I have ordered matcha latte before and I’ve never had one like this. The barista took a cup of milk and blended it with some matcha powder!! I have never seen it made like this before. Not only that, it was $5.00.. Waste of my money for a cup of 2% milk.

Buddy the Elf would honestly agree that this is the “worlds best coffee”

From out of town and wanted to grab some coffee. The guy running the spot really knows his stuff and is very passionate about his delicious coffee drinks :)).

Best coffee in town! Quick and easy service. Great music. Friendly staff.

Excellent unique coffee served by very welcoming and kind people. Highly recommend the special coffee section.

My coworkers and I are extremely thankful for this this place being open. Aesthetically pleasing coffee shop with outdoor seating available, the people here are always friendly and accommodating. They have plenty of options(which is often a rare thing to find on Pearl) and I now have a list of drinks that I tend to drink on the regular.

Wow! Recommended by my roommate, he was onnnn point.This place is awesome! Great atmosphere (especially under the circumstances of the pandemic and what not) very peaceful outdoor seating, great place to people watch.The coffee was exceptional, got the Milky Way, blended, tasted like the best espresso caramel milkshake you could imagine!!!The owner, Steve, is a great guy, very hospitable, tell him ya saw my review ;)

Stopped in quick for a cold brew while passing through Boulder and was greeted with some awesome personalities and great conversation. Rad vibe and fantastic cold brew. Definitely stop in if your visiting or a local!

Great new coffee bar!! The owner was super friendly and welcoming. I tried an iced latte he recommended (I cant recall the name but it was a fun one) and absolutely loved it! Delicious coffee, good vibes. Ill be back!

The coffee is delicious 👌 and affordable. The service is awesome! A convenient location in downtown, and the best part is it isnt Starbucks! 10/10

Best coffee drinks I’ve had anywhere! The nutty astronaut and white chocolate eclipse are absolutely delicious, a must try! Small shop with quick in-and-out service and the best coffee in Boulder! Right off Broadway and Pearl

Great coffee and awesome staff. Love the vibe and the prices are very reasonable. Highly recommend!

Terrible service. Not wearing a mask. Sorry i seemed to have bothered the barista that was on his laptop, he seemed annoyed at my presence.

My new morning starter! Really friendly staff, just what I needed to start my day. A well prepared coffee and a warm hello. Cheers to this place.

Sweet new coffee and smoothie bar! I got the mixed berry smoothie and it really hit the spot on this gorgeous spring day. Very friendly barista and great service!

Happy to have discovered this place. Thanks for being kind to my little doggo, and the great coffee!

Friendly barista, good iced white mocha. Support local businesses!

Good drinks, and ambiance

Great Coffee Shop!

Great coffee at affordable prices! The location is perfectly situated off the downtown mall.

The best place in Boulder CO for your coffee fix

Too good to be true

Excellent coffee downtown