It is a very well built and perfectly functioning pedal but it is a little of an overkill for a digital piano, even a good one (like the nord stage 2 I have). Sostenuto on a digital piano is good fun to mess around with but not something that normally gets used on a gig. Same with the half pedalling and the una corda. If you have a digital piano as your only instrument (and plenty of spare cash) then this could be a good thing to get, but I have a grand piano, which renders this pedal unnecessary at home, and when I go to gigs I take a smaller single pedal to minimise the weight I have to carry.