The tone he got out of it reminded me of Mudvayne. This amp is pretty fucking good. The only downside was one of his 10" was fucked up. Didn't end up affecting the recording I just used the one diagonally from it, but still for a cab that pricey that sort of sucks for him. I'm sure he will just run it back to guitar center though.
I had him disconnect the 15 (er 18, not sure) because it just rumbled the room in a bad way.
He was getting rid of his old gear so I scored one of these today as well, it's actually pretty good as long as you don't run the compressor or the sonic maximizer part of it.: