So after a few days of on and off play, I can say that Perfect World is still interesting. I do find myself wanting to figure out more about how the game works. The game is entirely stable and seems to be without bugs. I generally experience a bug or two in WoW on a regular basis. To get an entirely free game without them seems a bit unreal.
I have to admit that I suffer bit of WoW burn out. Now any morg that resembles elves in the woods sort of turns my stomach a little. My ability to enjoy Perfect World is hampered by this burn out. It is a different game, but certainly contains many of the same tropes.
I'll keep it loaded for a while longer and see if maybe it suckers my wife in. Then I can report on the wife factor.