All this Samsung love here... I have two brand new 840 Evo 250GB drives, and they are garbage.In fact they are so poor, I had to separate all my files, and break the RAID,and have two individual volumes, so as to have Trim enabled, and also Magician running, otherwise, terrible read and write (especially) performance resulted. I did verify they were genuine drives too. As soon as you begin to fill up these 250GB Evos, performance falls off a cliff.I'm now not a believer in TLC, and wish I had waited to get the Pro's (not available in this part of the world), as I hear much better things about them.But I've had my fill of reading reviews on consumer drives, I'm going to California in a week or so, and so I will either get 2 x 400GB S3700's, or a single 800GB S3700 (and to hell with RAID). Enterprise drives are the bomb, and don't forget that. Lost way too much time and data now with 'consumer' drives...By the way, X25E 64GB still going strong without so much as a hiccup. Not even a burp... If they made a 640GB X25E, I think I'd suck their, ok, I won't say that but you get the idea.