Final Verdict - vocals sound amazing ... I get all 4, and more if doubled or in choir mode.
Looper is fun and functional ...
Then, there's the reason I wanted it in the first place:
THE GUITAR:
The actual effects are wonderful, the harmonies track great but there is a teeny bit of latency in it! I just feel like I'm playing an old-school Casio Midi guitar.
Sorry Challie .... can't buddy up to that feel.
It's packed up and ready to go back.

I am resigned to the fact that the onboard is going to have to do, and when I need the guitar to trigger .... I have a workaround with my pedalboard. It's just a little trickier to plug in, but it should be fine after a little tweaking. That way I get dedicated processors for kb and gtr.
It's like Dorothy said ... " if I ever go looking for my heart's desire again, I won't look any further than my own backyard"
(or studio, that is.)

Hope you guys are givin' Gary hell at the late night, double feature arranger show .... wish I could have made it.
Enjoy!