The OCZ Vertex 4 is a brand new ssd. It was just released last month. Issues popped up. At the beginning of this month OCZ issued a firmware update which fixed most issues. There are still a few minor issues that need to be worked on. That means another firmware update. I'd wait until we see how things play out.
I haven't posted it for a while but here is the standard recommendation I've made countless times:
If reliability and stability is a major concern, then Samsung is worth considering. Samsung was awarded contracts to supply Dell, Sony, Lenovo, Apple and other off the shelf brands with OEM versions of their 470 Series SATA 2 3Gb/s ssd's. Eventually the 470's were released for retail sale to consumers. There have been no major issues reported. The 470 has an absolutely stellar record.
Then Samsung released their 830 Series SATA 3 6Gb/s ssd's as successors to the 470. The first ones were OEM versions for Dell and the other off the shelf brands followed by release of retail versions for consumers. The ssd's are Samsung's own design with their own components and firmware. It looks like Samsung got it right again.
I've read several posters here that have had some reliability issues with OCZ products. On the other extreme, Intel has an excellent reputation for reliability. So, I'd steer clear of OCZ and go with the one that gives the best performance bang for the buck. Agree with previous poster...the Samsung 830 would be my choice.