Overall my 15" has been great considering it was one of the first off the turnip truck. On either graphic cards occasionally the screen blinks. I can't tell if it happens with full screen video, but it doesn't appear to matter what else I'm doing. My battery runs down while asleep, but something I noticed is that even while asleep the USB ports have power because my iPhone still charges. I don't know if that is the only reason for the drain. Mine takes significantly longer to chanrge than my previous 2.0 MB did. Anyone else suffering any or all of these issues?