Those are all problems that have occurred on some machines. Another one is lag, which might or might not be related to thermal paste issues -- some rMBPs have been reported running very hot, whereas others don't run particularly warm at all. The computer will throttle down and significantly affect performance if there are overheating issues.
On the other hand, there are plenty of rMBPs around that have never had any issues at all. If you're buying second-hand, check it out first. If you're buying new, you can return it for repair or replacement.