This is hands down, the best ice cream place in Pittsburgh. It is legendary. The lines are well worth the wait, but honestly, it moves pretty fast.
It is CASH ONLY so remember to keep that in mind. There is an atm on site though.
My favorite is the pistachio soft serve with crunchies on top. Also every single sunday they have on the menu there is to die for! I seriously can't say enough good things about this place. Go now to find out for yourself.