I'm just a DP and I don't know much about computers, but recently I HAD to learn a bit about SSDs...
Read and write speeds that are relevant for video and film are tested regularly. It's apparently called AS-SSD:
AS-SSD have also made it into the marketing numbers, by some manufacturers:
And, then there are the stories I hear at the rental houses about shoots with external recorders where somebody decided to put a Sandforce based SSD into it (even though it's not recommended!). Of course with disastrous results, otherwise it wouldn't be a story worth telling. ;-) But the more serious aspect being the cost of recovering the footage, with a starting price higher than a Scarlet. That last point being less relevant to this thread since SSDs used for these purposes won't hold camera originals.
My conclusion so far:
For an OS drive and general computing Sandforce based SSDs are awesome.
For a media drive Samsung & Intel leads the pack, and Sandforce based SSDs are possibly a really bad idea.
I would, of course, love to be proven wrong about the negative aspects of this post!
Hope that helps.