Mine's been fine. Couple of bugs but nothing worth returning it for. Came w/ .65, installed the leaked .75 and left it. I think the problems have been pretty intermittent. Some devices were buggier than others. I don't think RIM sold different quality devices to differnet locations specifically.
Ordered mine on the 23rd. Haven't had any major problems with it. It came with .65 and I installed the official .75. It's a little slow sometimes, and I've had some problems with weatherbug and opera mini making it run slower, but other than that I love this phone!
Got mine from Best Buy, replaced it once and the replacement was slightly better but not by much. I have not had any of the major issues others are having.
Got mine ordered on the 21stand it was delivered on the following Wednesday. No problems so far and just upgraded to .76? I think. Got Opera working on it and I'm thrilled to death since the app is full touch.
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