^^^ for some people they have been very reliable. But for others they have been very problematic.
Out of three Vertex 2E's (all 60GB drives) I have none left working as all three went into what is called "panic mode" where both the red and green diode on the rear of the PCB are permanently lit and the drive is then totally unrecoverable.
On my last Vertex 2E, which ran fine for just twelve months, I had an old firmware and after the last two failed I noticed that OCZ brought out a new firmware to hopefully resolve that "panic mode" situation.
So I flashed the drive (mistake ?) and all went well but then over the next day or two Windows would BSOD as the drive would disappear (the OS was on it) and then reappear. It lasted another day and then it too went into "panic mode" and died - did not recover after sleep mode.
Thankfully my supplier changed it over the counter for a Crucial M4.
So for me and my experiences, and having read of so many peoples other experiences (and how many returns my supplier was having of these drives) I decided to look elsewhere for my SSD needs, which have been met by Crucial Samsung.
I would not touch one again and remember that if it fails in such away you cannot securely wipe your data as you can't access it but it can be recovered by OCZ, but they do have a policy to safely wipe that IIRC.