ebay's "car parts"???

[2003proes]

so...i am looking for a new passenger side power mirror cause i hate the m3 style cheapies i bought, and i ran accross the ebay "car parts" mirrors. they say they are oem standards, but not oem. has anyone delt with them and know whether the parts are ok or not? also they are supposedly guaranteed fit and quality. and they are about a third less than the ones from the stealership.

 

[Kooldino]

They probably suck, although I've never used them.

 

[Perma]

They're probably like the stuff a wreckers would have in stock. Not sure if you've ever contacted a wrecker for new stuff. Usually it's quite comparable