I recently picked up a Hot Cat 30 head, and it is killer! Really great tones on channel one. I usually push mine well past the point of breaking up, and then just back off on the guitar's volume knob when I need it cleaner. Channel 2 is really great overdrive. Lots of punch, clarity, and tight/defined bottom end, even with higher output humbuckers.
I wish I had discovered this amp a lot sooner. It's one of the few amps I've owned where I like the clean channel as much as the overdrive side. And it likes humbuckers as much as single coils, so that's an added bonus for me.