My initial impressions are very good, although I've got a feeling I've hit the speed barrier which is apparent on ICH9 chipsets, need to do some more research on that.
My setup is 2x64Gb Samsungs MLC in RAID-0 128k stripe (with default offset for vista install)
So i installed Vista with integrated SP1 and current hotfixes and integrated drivers which took 15mins 48sec. Not sure how long it took on my old drives, but it was certainly longer.
7200 RAID 0 Bootup > Launch Firefox 1 minute 24s
SSD RAID 0 Bootup > Launch Firefox 27s
I found that both SSD and HDD take around 20s to get into windows itself, but once your there the SSD has loaded everything up very quickly and you can use your apps straight away. Where as my HDDs takes an additional minute until I can actually use any apps and you can hear my HDDs thrashing away.
Heres a few benchmarks I've done so far..
Full test (real world simulation):
4k r/w test:
The IOmeter test is one Tony from the OCZ forums likes to do. For comparison.... Update: I got the I/O bench wrong. The sammys don't do as many 4k I/O's as the Vertex. 1067 vs 2500. However the drive is still a very good performer for the price.