I've had this Rhino Beast for years now. When I got it, it still had the ugly grey carpet headshell. I built a new headshell and did the snakeskin tolex.
The amp sounds really good, but has a couple of minor issues. There is a switch on the back that has 3 "sag" settings, but it only works in the "no-sag" setting. The reverb never worked, and I never bothered to look into it. It may just need a new reverb tank. Honestly, the amp sounds so good that I'd get these issues fixed if I had a decent local amp tech who was willing to do it. Otherwise it's fine as it is. It sounds great and seems to be well built.
It's what I would call a 2 1/2 channel amp I guess with the clean channel also serving as a crunch channel, but with more gain available than you would expect from a crunch channel. The high gain channel has a ton of gain and low end available.
One day I'll get around to doing some clips of this amp because the only thing you can find on youtube is a really bad clip that is just pure mud.