I think this is a great place to come for a drink if you're in Squirrel Hill. I like that it's open until 11, which is 1 hour later than some of the other coffee/tea places on Murray. I liked to come work on my thesis here, and at night there were generally seats available, but not very many outlets. The fruit smoothies they make are great, and the cookies are good here. They have a decent tea collection, and I've never tried any of their coffee.
Good for groups or flying solo. There is lots of seating inside, and there is a really cute patio outside for when the weather is nice! It has a nice feeling inside, and the atmosphere is generally very enjoyable.
Cash only! There is an ATM at a bank about a block north on Murray if you need to stop by one on your way in.
My only real main complaint is that a couple of nights before 11:00 closing when I was there it would get REALLY loud. There was sometimes a large group of homeless-y looking people (I have no idea if that's an incorrect judgement on my part, and if so, I apologize) that would come in and hang out with the barista and be really loud and chaotic. It was pretty disruptive so I stopped going as often.