These instruments are prone to wobbly keys, and the edges start scraping together after some usage.
They aren't as bad as Casio's weighted hammer actions, but they still get wobbly and noisy.
You get what you pay for.
Ian
_________________________
Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.