Firmware
Hope they write some solid firmware before they release it.
I have nothing but trouble with an OCZ vertex 3 disc I bought a few months back. Since then numerous firmware updates have released, which have been impossible to install because of troubles with locked up drives and after their switch to a complete ISO not even been able to boot the firmware at all.
Every now and then, S.M.A.R.T. messages pop up saying there is some problem with the drive, only to disappear after refreshing the data. Now, these messages just keep coming, with an almost brand-new drive.
Their support sucks too, with employees mostly ignoring the support topics in their official forums.