I can honestly tell the difference (thumbs up)!!!!!!

I'm seeing far fewer crashes too - better VSTi performance and no more stability issues when turning synths on and off in the synth rack. I used to get crashes doing this fairly regularly and don't see them any more. 

I usually sit out the monthly releases until thing shake out & I have a block open (I was a couple back before this release.)
 
I was looking for resolution for the Metric Halo "issue", so I jumped into Kingston straight away.
No issues with MH CS3 now, and I'm seeing an improvement in overall load times across the board.
 
Baseline tests - old stuff, new stuff, typical operation, FX/plugs/synths - no issues in a bunch of projects tested.
 
Going to dig deeper this weekend, but so far Kingston is working great!