This replaced a Boss NS-2 I have had for decades. I like the fact that it has Hush noise reduction as one knob, and a gate as the other. With both of these features it is more useful than the Boss. It is true bypass, and I heard (but did not verify) that Bob Bradshaw has used this pedal on pro boards he has built. it does everything it is supposed to do, and sounds (or doesn't sound!) great.