I don't think 3 stars does this place justice. True there are no competitors around aside from restaurants like primantis or Wingharts that also sell beers to go, but the beers available are great. I would give this place 4.5 stars if possible as I agree that sunny dispositions are not quite this place's forte.
That said, amazing selection considering the size of this place! Having a selection downtown is fantastic in and of itself. I go here multiple times a week and of course while I would like to see more stuff there, and Western PA representation would be nice, I am basically voting on how happy I am to enter this place every time and be able to walk home with some great cold brews. I highly recommend it.