First of all, back up your bundles and setlists via the Helix application on your computer. My Helix arrived Thursday October 8, 2015. I'm using two Mission Line 6 controller pedals. I've had a couple of bugs: 1. The unit would go silent but continue to navigate fine. Switching the unit off/on would correct. 2. The unit wouldn't boot up after the splash screen/firmware version. I had to factory reset to get the unit working. I'm guessing these issues are temporary and will be corrected in a firmware update. Looper: I'm not sure why the looper is only available as a block per preset, instead of a global looper like the M9. It seems odd that I cannot build loops from different presets, which is the best part about looping. I love the sounds! Did I mention I love the sounds? I love the sounds. I'm not much of a guitarist, but the Helix sounds fantastic and sounds liked a microphoned cabinet to me. I'll be using the Helix for Chapman Stick, Bass, Acoustic and Electric Guitars. It's very easy to navigate. Drag and drop presets would be a handy feature of the Helix application for the computer. I'm looking forward to many happy years with my Helix!