I have used OCZ, Samsung, Crucial, Intel, Sandisk & Corsair SSDs over the course of the last 2 years.
OCZ initially was fraught with numerous failures - after lots of firmware updates and prayer, several of the replacement drives seem to be somewhat stable. I wouldn't purchase them if you value your data and don't continually backup or if you never want to experience an outage.
Corsair was fairly middle of the road - I had 1 failure but it seemed to be a heat-related failure within the laptop case. Pretty quick
Crucial has been incredibly reliable - I haven't had a failure even though I have roughly 20 deployed in older laptops that needed to speed-up their boot times and wanted to not worry about an accidental drop destroying their data.
Samsung has been really reliable as well - Dell deploys the 470 series in their newer e-series laptops and they've been really quick and reliable. No failures yet in over a dozen machines.
I have the Intel 520 series in my desktop - I upgraded to this from a OCZ Vertex 2. Even going SSD to SSD, there was a noticeable performance difference. Fastest drive I have ever used and I have yet to have a hiccup and have had no compatibility issues. I use the 120GB and it has my OS, Program Files (including BF3 which is pretty chunky for a game) - I have plenty of spare room without having to worry about managing my files.