Summary: Kingston SSDNow V300 Series though is a bit slower, is cheaper and still works without problems. Also it seems there is no performance drop on this drive.
Pros: Fast in the beginning of installation
Cons: 1) Unreliable, failed in 6 months. 2)Gradually loses performance but a Samsung speed restoration utility doesn't work in case you have those drives in RAID configuration. Samsung Magician utility also does not recognize drives in RAID and therefore is useless.
Summary: Have had no issues with this SSD at all. Enabled RAPID mode and loads WoW, Crysis3, heavily modded Skyrim, Batman Arkham City, Guild Wars 2 EXTREMELY fast. Got the 1TB version for around $250. Can't get a better deal.
Summary: I also purchased 2 HyperX for other machines over 2 years ago and they still haven't had a single problem.
Pros: Worked great for a year and a year ago, the price and speed were good, a year later. I'm on my 3rd one
Cons: The drive began to slow and eventually stopped booting after about 1 year. It got to the point where the drive couldn't even be accessed. So, after I jumped through a bunch a hoops and waited a month I got a replacement that was totally DOA. I am now waiting for my 3rd one to show up. It been 3 o...
Summary: Updating the firmware and reorganizing all the blocks in Linux took ~13 hours per drive. That was insane! The jury's still out on whether or not the update permanently fixed the problem, as one of them still feels a touch sluggish. Note that I haven't done any benchmarking, this is just gut feel.
Pros: Reasonably fast. At the time, low cost per GB
Cons: These units had the bum firmware that caused read slowdowns on old data. Both my drives were affected. Boot times slowed down to half of what they were when they were new in ~4 months.