Mines not a true SSD, so... None.
You already read my comment from the airplane co-owner about too many warranty returns in his small PC shop on OCZ, but even he'll admit that could just be a bad batch or whatever.
OCZ would be out of biz in this low-margin PC parts world if they really didn't work most of the time, so it doesn't really matter.
If you're going for outrageous speeds, there's detailed tech articles on the different generations of chipsets. Intel used to lead the way, but that seems to be changing. And you'll pay outrageous money for those top of the line ones, at percentage gains measured in single digits in most cases.
The other place they all compete is in warranty length.
Only other thing to watch out for in Macs and most laptops is drive height, physically. Some 2.5 drives are too thick. Not much of a problem anymore, but once was a reason for cheap proces on some until they cleared the inventory and made shorter ones.
