Finally stopped by Dean's (85th between Broadway/Amsterdam) for lunch the other day. Went with basic square pie - grandma type. Features 2 types of mozzarella - fresh and processed. and 2 types of parmesan. Crust was nice. Overall, it was good. Not great, but solid. A few people around me had the round pies, which looked like sister (or cousin?) restaurant Patsy's.
The space is beautiful.