I really don't understand the few negative reviews Constellation has gotten - and I hate to try and set the record straight and see it become uninhabitably busy like some of the unbearable (and not just because of business) Butler St. cafés. I feel addicted to Constellation's coffee in particular more than just to coffee in general, sure it's $3 for a large (with tax) but it is so drinkable - I feel like soon I'm going to start doubling up. The space is open. You can breathe - you get a wonderful mix of clientel - all kinds of hipster, not just rich-hipsters, and even some hospital workers, and accidentally hip Pitt grad-students. The pastries are excellent and priced rightly. And people are social but not in a way that keeps anyone from getting work done.