Not much new to say, as the overwhelmingly positive reviews are 100% accurate; the food is incredible. Everyone in Pittsburgh should try it if they haven't yet.
That said, it appears that everyone in Pittsburgh IS trying to have it, so getting into the restaurant is roughly as hard as getting an unannounced table for eight at Noodlehead on a Saturday night. But the food is so incredible that I can't take a star off for the awful wait you will undoubtedly have. It's still worth it.
Go early, go with a small crowd, and go hungry. You won't regret it.