Using both win7 and win8. And here win7 performs a little bit better than win8. But in general I think win8 is the OS to get. One thing I know is better on win8, is the PDC latency. There’re fewer drivers running in the background, that creates DPC latency. At least, that is what I’m seeing on my systems. win7 is more heavy with drivers and DPC, and win8 is more light, with lower DPC.
I haven’t had any problems with driver compatibility. The win7 midex8 midi driver is also working fine on win8.
SLL