I have owned a PC88mx for 3 years now. I got one of the newer keyboards with the new keybeds. I didn't have any trouble with it when I was using it in the studio but when I started taking it on the road, I had to have it reparied 4 times in the last year. It doesn't seem to hold up well under road conditions. I have a very good hardshell case and I'm the only one that handles it.