There are no quality issues with my MX88, it's constructed pretty well (like any Yamaha product) but the sounds are very basic (an "OK" piano, strings, brass, couple of synth sounds, but horrible Electric Pianos). Consider whether you'll want to use VST's in the future - the MX88 has a built-in USB Audio Interface, which makes it a pretty good controller . I mainly use mine as a controller for Scarbee Rhodes, which beats MODX Rhodes by a mile.