I've got about 2k miles on two different ones, I like the high teeth but I find they aren't made of a hard enough alloy, they deform at the base of the teeth. I say pop for the $25-30 Sugino or Salsa rigs, they're much higher quality and wear better as well.

edit: if your current ring wobbles, grab a big adjustable wrench and straighten that bad boy out. It's not that hard to do, and it doesn't have to be perfect.