"Hands down one of the best restaurants I've ever been to. The seating is comfy. We sat in the window with plenty of pillows to lean on with a great view of the mountains and town. Our waiter was spectacular at his job, extremely welcoming and willing to fix little mishaps. We got a variety of foods including the burger, braided chicken, fries and papas bravas. Everything was phenomenal, perfectly portioned and decently priced. I normally go to the sink across the street. But this might just be my new favorite place."

"13th Street in Boulder is well known for its collection of comfort food and eclectic mix of cuisines from Dumplings to Indian fusion, so it's no surprise that nestled near University of Colorado is Brasserie Boulder/Cafe Aion, a Spanish-French restaurant. As a former bookstore, this restaurant has a lot of charm that makes for a cozy ambience, especially on a Sunday afternoon. We had a mix of mix of French and Spanish cuisine, starting with Truffle Fries, followed by Beef Bourguignon and Shakshouka, and ending with Basque Cheese Cake. I also had French Press Coffee as well, and just to get that out of the way, wow, such a good coffee! I'm an espresso and Americano purist, and somehow this French Press tasted like a very good Americano with a more nuanced, sweet chocolatey taste. But enough of that, let's get to the delicious food, and yeah, they are all so good! The Truffle Fries to start is just seriously addicting with its potent combination of Parmigiano, parsley, and white truffle oil. In fact, the ketchup is completely unnecessary and detracts from the deliciousness of the fries. The aioli provided adds another twist to the fries for variety, too. The Beef Bourguignon is surprisingly soft and delicate, but never bland or mushy. It plays that fine line beautifully and it is a delight and comforting to eat. The beef is tender, yet savory. It's appropriate that Bourguignon has a red wine reduction component because this dish is as nuanced and delicious as fine wine. Now going to the Spaniard side of the cuisine, the Shakshouka fires it up with a tomato and egg stew that's bursting with flavor! There is balance with the acidity and cheesiness, coupled with one of the tastiest flatbread I've had in recent memory. Finally, the Basque Cheese Cake, named after the Basque Country in Northern Spain, absolutely delivers as a dessert. This isn't an ordinary cheese cake because of the dulce de leche and candied pecans. I just love having the playful contrast of the semisoft cheese cake with the sweet and crunchy pecans. The Dulce de Leche adds another layer of sweetness that is so delectable. It really is 3 different way of sweetness that all works so well together."

"I have traditionally loved this place, and was very excited to bring my partner here for the first time for date night. But the night started off not so great when we came in without reservations and the server made us sit at the bar, even though it wasn't that busy and there were multiple tables available and empty the entire time we were there. To top that off, the server seemed crabby. When I ordered the Nicoise salad, which traditionally comes with a hard boiled egg, the boiled egg came out with liquid yoke. I cannot stomach liquid yoke, and asked for a hard boiled egg with solid yoke. They said they couldn't bring me one. That was disappointing. The menu seemed a little weak as well, compared to the other times I'd been there. All my favorite things were no longer on the menu (roast chicken, gnocchi, trout, flan). It was a disappointing night and I won't be returning there, sadly."

"We really wanted to like this place. The decor was great and the menu looks really good.  We ordered the hummus, olives, beet salad, parsnips and gnocchi The place has the appearance of being home cooked but that is not the case.  The hummus could’ve been straight out of a sabra container with frozen Sysco pita heated up.  The olives were branded as marinated Spanish olives, but they are straight up kalamatas out of a can with some olive oil.  Beet salad was the worst and doesn’t include any fresh ingredients. The waiter was nice. The chalkboard menu and atmosphere give the masquerade of an authentic chef inspired restaurant but sadly it is another inspirationless boulder bust."

"Have had great dining experiences at Cafe Aion - friendly service and delicious food. We particularly love the beet salad, hummus plate, and crispy cauliflower (with saffron cumin yogurt)."