I have done a partial test on it and it seems to be working.  Not sure what all it is supposed to do, but it plays and the rhythmsection does work. Haven't tested the record function.  The only known issue is the volume switch, which is a little fussy on the middle setting.  Needs to be jiggled to get the right spot.  I sprayed out the slides with de-ox and it seems to have helped, but I would say there is some play in the volume switch.  Seems to be getting better with use.  The finish is dull and has some scratches.  Could probably be cleaned up a bit more, but I just gave it a light cleaning.  Being sold as is.