Nigel,
I understand that some of those complaints are likely due to people who got the first stuff off the line. Typical problem these days, things get sorted by the next production run.
Anyway, the unit I had here at the studio was in working condition on every note. Every function worked as advertised, also.
But of course I don't expect the same kind of action and all from a keyboard with a pricepoint so much lower than the one you are currently playing, either. As an engineer, I consider all designs of man to be a series of tradeoffs and we must weigh the tradeoffs carefully whenever specifying any piece of equipment for any possible task consideration. In order to get all those assignable CC knobs, the tradeoff there was the keybed. However, when used in conjunction with my 88 key piano that does NOT have all of those controller functions, I got the best of both worlds onstage, as is the fellow who talked me out of that very affordable Keystation.
My aging back can tell you that carrying two `40lb keyboards stacked on a rack still beats the Roll-R-Kari, B3, Leslie, Wurly piano, Rhodes suitcase piano, Hohner Clavinet and the Yamaha 88 key portagrand!
--Mac
_________________________
"Keep listening. Never become so self-important that you can't listen to other players. Live cleanly....Do right....You can improve as a player by improving as a person. It's a duty we owe to ourselves." --John Coltrane
"You don't know what you like, you like what you know. In order to know what you like, you have to know everything." --Branford Marsalis