Just wanted to add, that once past the pianos(about 3) and the Ep's (2) the rest of the sounds are really average GM stuff really.
Personally I would not use them for anything.
The audio in jacks might come in handy, they seem quiet enough.
But really at this price, and with this quality of keybed, (and I suppose 5 really useable pianos), its pretty decent. I mean what other fully wieghted keyboard can one just tuck under their arm and then just toodle off!!
Dennis