I bought one of these on e-bay a couple of months ago and paid $550 for it. There was another one sold on e-bay earlier in the year for about the same price. I have a KN6000 and use it with a midi accordion, I felt the little one would be easier to take out on a gig and it is. It does an adequate job but nothing close to the KN6000. When I do solo gigs I take the 6000 and when I go with a full band I just use the little one for extra instruments like vibe, sax and organ. It is relatively easy to use with a lot of the KN functions, just not as many sounds and rythmns. It has a floppy based system and panel memories to save stuff on. I like it.
Ed.