I have one. The cleans are super clean but what bothers me most is that each pair of channels shares volume, eq, and gain, meaning using clean/od1, you have to compromise with the gain knob so that either the clean stays clean or the dirt is super dirty, but not both. The od2 channel is useless, imho. The lead channel is pretty brootz. There's a footswitchable lead boost so you can bump your level up for a lead break instead of getting lost in the mix. I spend 90% of my time through OD1 with a Boss OD-2r up front for a boost. The channels feel pretty lifeless to me without something hitting the front pretty hard. So far, the best tones I've gotten out of it were with a LP type geet with a CC through that OD pedal into the od1 channel. I keep telling myself I'm going to let it go but I just can't do it. Run into that same channel with those same settings, put both pups on, drop the master on your guitar and you can absolutely tear up some Uncle Ted and dirty, dirty blues. YMMV.
The head/cab combo can push enough low end to rattle things off your shelves.
Oh: and it's LOUD. Tube vs ss watts-whatever-350ss watts is no joke.