I agree. It's a film I admire a lot but find more difficult to enjoy than most of his other films. Lack of humour isn't a problem it just feels unusually heavy for a Wong Kar Wai movie. I'm a fan of his but think he's much better with more lighthearted stuff like Chung King Express or Fallen Angel.
Does some of my fave endings/credits, too
http://www.youtube.com/watch?v=6rgTRTVRf7s From about 3 mins in.