I've never had a cheeseburger as good as the ones served up at Tessaro's and I've eaten a lot of burgers. It's a small and crowded place, but it is worth any wait. It looks a little dark from the outside, but during the day it's a restaurant for everyone. The owner, Kelly, is usually around and sometimes chats with the patrons. The servers are attentive and friendly like most Pittsburghers. It's a great neighborhood restaurant and a place I'd actually go so far as to recommend to out of towners it's that good.