I bought one of these earlier this year here on Basschat, and I have to say that I've really been impressed with it!
As a preamp, it's great; excellent e.q. with sweepable mids, a very good and blendable drive control, plus the amp/cab models too. I really haven't been able to fault it so far! And I've not even used the cool online features yet..
This YouTube review is pretty helpful, actually...
Anyway, best of luck with the sale! ππ