I love mine! All the power you need with a warm tubey sound. I have mine paired with a mesa powerhouse 8X10. Crank the gain up and you get a good growl out of it. My eardrum blowing guitarists don't stand a chance
(they've been given the nickname SVT killers lol)
It will be an expensive day when the 8 6550 power valves need to be replaced, though.