Like I said, Vertex 4 is reliable and like my very first post in this thread states, SSDs don't make huge differences in most games. However, a non-SandForce SSD is likely to make a bigger difference than a SandForce SSD because a lot of data used by games isn't very compressible, even if the difference isn't stellar. That's why I recommend them.
The Vertex 4 is at the top for that (if it has updated firmware), then the Samsung 830 (reads), and then the Crucial M4 (also reads). The 830 and the Vertex 4 are closer than the 830 and the M4 and the 256GB versions of the 830 and M4 are a lot better than the 128GB versions. The same is true for the Vertex 4, albeit to a much lesser extent because the 128GB version is almost as good as the 256GB versions.
Not that I'm saying to give it too much weight, but according to newegg, Vertex 4 has a 2M hour MTBF, compared to Samsung's 1.5M hour MTBF and the Crucial M4's 1.2M hour MTBF. It doesn't mean that the Vertex 4s will never fail or even that the 830s and M4s aren't reliable (they are), but it does say that at the least, the Vertex 4s should be at least as reliable as the M4 and the 830. Only time will tell us more accurate reliability numbers, but from what I've seen and the thus far good run for Vertex 4 and it's highly rated MTBF (still, take that last one with a grain of salt as admittedly, it is only an unproven number), I'm convinced that OCZ didn't screw this up.
It's not like OCZ doesn't have any other great products either. Some of their higher end PSUs are top-notch (however, I know from experience that although some OCZ PSUs are great, many others OCZ PSUs are junk). This is because OCZ doesn't actually make PSUs; OCZ lets other companies put the OCZ name on their PSUs. I think that OCZ should have had more strict quality control about what PSUs are OCZ branded, but that's obviously not up to me. Some of OCZ's RAM was good (although they let quality slip badly on many memory kits right before they left the RAM business. I think that they might have simply tried to get rid of kits that didn't pass binning very well, but screwing their customers back then was definitely not the right way to do that). Some of OCZ's SSDs (namely, the SandForce based drives) could be said to have been reminiscent of OCZ's questionable reputation. One thing that OCZ has done consistently is to be inconsistent. Some of their products are great and some of them are stuff that you should stay far away from.
So, it's understandable to not trust the company. I might have come off as a little zealous about the company being great earlier, so I wanted to clarify why OCZ has had a questionable reputation in greater detail than the other posts here did. The Vertex 4s, as of yet, do not seem to be something that you should stay away from. With the new firmware, they are easily the best SSD to have for varying workloads (different games can use storage in widely varying ways), so overall, I like to recommend them. One thing that I've heard (at least from people whom bought Vertex 4s from newegg) is great praise for their customer service, something that from that company, I can also admit to being uncommon. OCZ seems adamant about their Vertex 4 drives and I can completely understand why they would be... They are not only now competing against the other SSD companies, but also against SandForce itself. OCZ needs Vertex 4 to succeed, or else they are pretty much screwed in their current venture into the SSD business.
There are some situations where the Vertex 4 is not preferable. If you know for a fact that pretty much all of the data that you will use is highly compressible, then the drive that I would recommend would either be the Mushkin Chronous Delux or the Intel 330s. The Delux is a little faster, but the Intel 330s are most likely more reliable and not that much slower (for these two, the performance is close enough to want that reliability). Both are very cheap for their capacity and their performance. For a mobile computer that depends on high battery life, I would recommend the Samsung 830s without a second thought in any way. They use almost zero power (maximum load power usage is less than one fifth of a watt. It's a mere 0.15w for the most power hungry 830s at full load, according to newegg!) and for reads (arguably more important than write performance), they are close to the Vertex 4 in performance (several hundred percent better in power efficiency). However, for desktops, any SSD uses so little power (including Vertex 4) that there is little reason to care about it's power usage.
Even in fifty years, it could not make a major difference, unlike CPUs and graphics cards which can make significant differences in your electric bill. Get whatever drive that you want, but keep in mind, don't get a drive of less than 128GB and if possible, 256GB is even better for the 830s and the M4s (not a huge difference with the Vertex 4, another reason why I recommend it). If you play more than a few games, then higher capacity might be important to you. Windows should have at least 25GB to 30GB dedicated to itself (it probably won't use more than 20GB right now, but it might need more in the future) and after that, you would need to factor in what you want on the SSD. It's best to keep the capacity at way lower than 100%. I would not recommend going over 75% full on any SSD except for drives known to be able to handle it very well. One thing that SandForce does do very well is garbage collection and I don't know how well the non-SandForce drives can handle this in comparison with SandForce drives. I don't think that the non-SandForce drives can do it as well, although I'll have to look that up (so don't trust my assumption just yet, maybe JohnnyLucky or someone else knows about this better than I do and can help).
I apologize about the long-winded post, but I thought it best to try not to leave anything out. As of right now, the Vertex 4 holds my recommendation for any desktop (unless you know that you use huge amounts of compressible data and you want a SandForce drive because of that, or if you want to RAID multiple SSDs because SandForce seems to be the only SSD controllers that can use TRIM in RAID right now. In either case, I'd go with one of the two SandForce drives that I mentioned above) and the Samsung 830 for any laptop. The Crucial M4, although a little slower than the other two, is also cheaper, so if price is more important than a moderate performance boost, then the M4 is also a good choice. Both the 830 and the M4 are, admittedly, tried-and-proven options and the Vertex 4 is very young, but nothing but speculation based on reputation is against the Vertex 4. It seems that like RetiredChief said, the new firmware trades random performance to get the better sequential performance. Technically, most data throughput is sequential and the Vertex 4 still has excellent random throughput, so that is still an improvement, at least IMHO, unless you know that you will rely on random data throughput very much.