It works fine as far as sustaining the notes, but it's VERY light and slips all over the place

slide across floor when in use.-Not as comfortable or useful as a big sustain you can feel with the whole ball of your foot.-Not compatible with Yamaha (and others) unless you like your sustain "reversed" such that it sustains when open and doesn't when pushed down

This pedal is perfectly sensitive, and sustains incredibly well, almost matching the pedal of a real piano

slide across floor when in use.-Not as comfortable or useful as a big sustain you can feel with the whole ball of your foot.-Not compatible with Yamaha (and others) unless you like your sustain "reversed" such that it sustains when open and doesn't when pushed down