I've been using my new Samsung 830 in my early 2011 MBP pro for a few days now. The good: much faster than the stock Apple drive, no lockups or random reboots. The bad: flaky Lion re-install (recovery console wouldn't work), much worse battery life than with the stock HD. At this point, I think I'm going back to the stock HD. The speed is nice, but the shortened battery life is a big problem. Maybe the Samsung is better suited to a desktop system vs. a laptop.