I use a Rev Jr pro, and like it alot. But, I wouldn't recommend them to anyone.
If you have a problem with the amp, warranty work takes forever.
I sent mine in for a feedback problem and all they did was change out a brand new tube, that I had just put in and didn't fix a damn thing. It took 4 months to get the amp back, and all the problem was, "which they don't bother to tell you," is the fx loop has to have a cble in it, and it has to be switched on.
If you don't the amp, the amp will feedback to an uncontrollable level. It's not cool.
Other than that, it's a great low watt, high gain amp. It'll do trash with the gain on 2.
The Krankenstien is just a modded version of the Rev. Both will get you where you need to be.