I've got one of these myself, hideous amounts of gain.
It is a great live amp, but I would recommend getting an ISP Decimator cause it's noisy as fuck, and a very loud drummer cause it outputs a wall of thrash.
I haven't had an opportunity to mic it up yet, I've used it with impulses and it sounds a bit wooly but pretty usable.
It's built like a tank and weighs about the same.
If the price is good for you I would defo go for it.