Liked: Quality seems good, well thought-out ergonomics, good cable and charging function (USB-based, you need a real charger). I play some fast stuff, like Alvin Lee's 1969 Woodstock workshop Goin Home, and the arpeggios keep dropping out. I sent them back after a few hours of play. I've been through a couple of non-dropout modeling amps with the cable attached. The claimed 20ms delay shouldn't be noticeable. I will try the more expensive version next time. There's no reason you can't get a quality device for less than $100. I had a Line 6 G 10 which was good but broke the bed a month after the warranty expired and a Samson Airline 77 (junk).