I've only been to this place a few of times, however, each time I've thoroughly enjoyed it even with different groups and types of friends.
It's cozy, it's quiet, and in the summer, with the windows open, it's a great place to people watch near the AGO. There is also a very solid beer selection. Great for quiet dates, or one on one conversations with friends.
I wasn't particularly impressed with the food (I've eaten there only twice) and in either case, it was adequate, but uninspired.