nope, no problems whatsoever so far... some games i've been playing like 4-5 hours non stop everything is a-ok

like online and all stuffs dealing with online? ps3

if single play:
like racing and fps games? xbox360
like fighting games exclusively? ps3

Ujin: i think since early of the year. been finishing lots of old games from it ever since and it's rock solid stable. internet reports has not had any jasper units RRODing on them so it's a pretty safe bet that this is the model that you're waiting for if u r aiming for an xbox360