I ordered this pedal alongside the DNAfX AmP20 simply for the fact that it was a neat little accessory for an affordable price. I did not expect for it to actually be of such high quality!
My biggest concern was that this pedal would cycle through all possible presets before going back to the one you want. As I mostly intended on using this to switch between Clean and Distortion, that would be dreadful. But alas, when using the pedal it cleverly switches between whichever last two presets you engaged (1 & 2, 2 & 3, 3 & 4, etc.). This makes it PERFECT for rapidly stitching from melody to shredding without having to bend under your desk to start awkwardly fiddling with your buttons!
On top of this, the pedal has a nice weight to it alongside a very responsive switch. It also does not slip whatsoever when placed on the ground!
If you plan on getting the DNAfX AmP20, I highly recommend also getting this pedal for the sake of accessibility and simplicity.