Hopcat has added exactly what was needed to the State Street area. It's a little more upscale than the younger crowd bars, which is a big plus for me. The beer list is always changing and never disappoints. The food has been delicious - don't skimp on the crack fries! The servers and bartenders have always been attentive and knowledgeable when I've been. Late night menu is offered, as well.
If you get stuck in the outside line, it's never taken me more than ten minutes to get in (prior to 10:00). It gets crowded and seating might not be available right away, but with so much room in the bar areas both upstairs and down, I've never minded much.