I’d venture that Jiang Nan was a nicer room and atmosphere than Uncle Lou’s, with attention to presentation and drinks. (The duck was very good, some of the other dishes at neighboring tables looked like better choices than ours fwiw.)
But if you want a bigger room, maybe Uncle Lou’s – or Ping’s?
Further uptown (to varying degrees) – Pinch (also for duck), Hao Noodle, Cafe China (new digs), and Blue Willow in midtown all have nice rooms and solid food.