All around, my JTV just seems like a way nicer instrument. Granted, I only had the 300 before, and now I have US JTV69, so it's not really fair comparing guitars that are orders of magnitude different in cost... But, I have played Korean JTVs, too, and, I think to me the biggest difference is that the JTVs seem like a "real" electric guitar. Because of the lack of pickups, I always thought the old Variaxes seemed more like novelty instruments. I think adding the magnetic pickups was one of the best things Line 6 decided to do for the JTVs.