I've used the 2000 for just about a year, at least 5 nights a week. I've had no problems at all, and I actually like it better now than I did when I got it.
It is an amazing keyboard at any price, and simply a wonderful buy for the money.
Of course I still have not forgiven Yamaha for marketing it under false pretences and for not correcting the vocal harmony fault (actually a minor thing).
Because of the versatility and functionality of the 2000, I now plan to get a Tyros--after I see it and play it of course--despite my dissapointment with Yamaha.
DonM