This is among one of the simplest loopers. It sounds to me to be extremely transparent -- the tone in is the same as the tone out. The overdubbing and undo features are effective, but a little tricky with only a single foot switch. This form factor is very pedal board friendly, which was a big lure for me. I am also a fan of Boss and Roland products in general. I have not tested this, but I believe the stereo capabilities offer a ton of flexibility, whether connecting a second instrument with a combined output, or two discrete signal paths.