Yet, unbiased review
I have many reasons to be biased here and do my best not be in my reviews. To be even more fair and remained unbiased, I could easily deduct another star but I won't.
The one star reduction is because I think this pedal is very over priced. Overall it just feels cheaply made. I love what it's meant to do, but the housing is cheap, the foot bar is hollow. By hollow I mean what might appear to people as a solid pedal, is actually only about 1\16th thick. Slightly thicker than the rim of a coke can. Finally, it's easy to see why many say it squeaks. Mine doesn't "squeak", but there is a lose sort of play side to side that I can only imagine may have been from Yamaha possibly fixing the squeak issue. The hollow part I mentioned doesn't mean it isn't solid though, and it feels solid to me. It's the biggest pedal I've ever own in my many years though, haha. For what it does in half dampering, I'm sure that would deserve the 4 stars I gave it. Unfortunately for me, I won't know for a couple months when I get a new keyboard that it will work on.
I own a Korg Triton Pro (76) and even though it supports half dampering, this pedal won't work for that or at all without a hack. The jack is stereo and the Triton only supports mono. I expected this so not depressed, too much. Changing polarity won't help either since it still isn't seen at all and can't be used as even an on\off sustain pedal without a bandaid fix. For those that this pedal won't work on your current hardware, I'd say to hold onto it for when you have a board that it does work with and do as I do. To get it to work on my Triton (or any keyboard that rejects stereo jacks), simply unplug it half way. You won't get half dampering but it will work just fine. Gigging however I wouldn't bother trying that since of course it will fall from that sweet spot bandaid fix if you play as hard as I do. Looking forward to seeing (hearing) the difference this will make when I get my next board.