Here is ATTO for all three of my SSDs with O/S's post-alignment. The Giga785 is a SATA2 mobo running Win7 (main utility, torrents, etc. lots of programs and junk) and seems to be saturated, and the other two SSDs are on the ASUS890 board SATA3 mobo, one drive running Win7 the other running Win8, they seem to be doing their job at least as well as can be expected for budget $80 SSDs
All are using the generic M$ driver. Major_A your ATTO is a little higher probably due to your Intel chipset and using the Intel driver which I've heard is better than the M$ or the AMD SATA drivers.
Most if not all SSD reviews on the net are with the SSD being a non-OS drive to get the "best" results.
Yeah I can see that, they want to be able to justify their claims. Not very realistic though since the main reason I got SSDs was to boot/load up faster and have snapper response across the board. All my junk err... important data will go to the platter drives once I am satisfied that these will stay stable. FWIW the Win8 drive doesn't really have any other programs installed, just the O/S. I have been waiting for Win8.1 to be released to see whether it will necessitate a fresh install or just a service pack style upgrade.