Overall, I'm impressed with this switcher. I wanted something that could change my amp channel and send MIDI in a small package. I have a two channel amp that uses a TS cable to switch channels via footswitch, and I send MIDI to my Boss MD-500. In the loops of the Cybery, I have compression, fuzz, and two boosts (SD-1 and dumble type). I use the switcher in preset mode. It is incredibly easy to program with app. The unit has lights on the back aide by the plugs that turn on when a loop is engaged, so if you forget what you've programmed you have a way to figure it out. I dont notice any tone suck or any other affect to my sound being plugged in to the switcher. I got rid of the Boss MS-3 because I perceived it added a strange high end to my sound (and I know I could adjust that out with global EQ, but I really dislike programming). I much prefer this over the MS-3. If you have MIDI pedals that are always on, then the three MIDI commands this unit sends will be enough. I use my MD-500 in A/B simul mode, which means I use all three MIDI commands just for the one pedal (one PC to choose which bank of effects, and two CC messages to turn on or off A and B). I wouldnt mind another MIDI command to send to my TC Alter Ego x4 to switch delay sounds. The one feature I wish this had was a way to switch between preset and loop mode while the unit is on without the app. I know the Boss ES units let you switch to a manual mode where you can turn on/off loops in your preset. With the cybery, I'd have to have the app handy when I whimsically want to add a boost, or else program presets with my boost options right next in line. But the size is small and compact, works great, easy to use, and sounds good. Will be using this for the foreseeable future.