I've run loop switchers on my board for a number of years now and have been through a bunch (Loop Master, Loop Switchers, Road Rage, and Voodoo Labs PX8). I just use simple switchers, no MIDI or anything complex, cause I don't like a switcher that's smarter than I am haha. I've had a few switch failures which the manufactures fixed (Loop Master and PX8) and had strange things happen such as a small amount of signal go through the circuit when I put a tuner on the first loop with only a send connection. After the third switch failed on my PX8 I finally broke down and bought a used Gigrig Quartermaster QM8. I've only been using it for a few weeks now but I was surprised at how much quieter it is. The PX8 (and I suspect other switchers) introduced a bit of noise to the circuit, and the QM8 just seems to sound cleaner. The soft switches are also so much nicer to use. I had a hard time spending that much on a loop switcher, but now wish I had a long time ago.