I have one. It's good for the basic use for the design, but not much else. Designed for inserts, so have to be careful if you're plugging in a balanced input. Unbalanced makes no difference. The monitoring interface is clunky but does exist. However, you can't adjust the monitoring once you hit record.
It was nice walking into a venue to do a soundboard patch with snakes + lr16 + power all in a small bag. I did use it for a stealth gig one time.
I rarely use it since I upgraded to the Cymatic Utrack24. Bigger but way more powerful. Although there's one show this summer that I might break it out of retirement.