So after extensive testing, this thing is complete garbage.
Vocal harmonies don't track AT ALL. Like, not even close. And there is an audible click when you engage or disengage them. So the harmonies are totally useless.
And the looper, while packed with features nobody will EVER use like half speed, double speed and reverse, lacks the simple functionality to select WHAT TO LOOP. If I can't tell it to loop my guitar but not my vocals or vice versa, the looper is also totally useless.
The guitar tones are alright, I guess. I tried cloning three of my drive pedals. One was kind of close. The other two were not remotely in the ballpark. It does a reasonably passable Twin Reverb. The JCM800 patch is terrible. The AC30 patch is even worse.
I expected SO much more from a $1300 processor. I REALLY wanted this to be the unit that finally retired my TC Helicon Voicelive 3.
It isn't.