It is pretty damn accurate tbh. I've done shootouts with mine before, and they sound a bit different, but nothing that you wouldn't get in the real world with component tolerances.
I actually think with a valve poweramp and the Axe III, I'd live on the VH4 primarily.
Sometime this year I want to get a valve poweramp, just for titting around with. Although the Dual Recto is a good option anyway.