I love the kick ass styles and sounds, ease of use, keyboard itself (no paint loss here and the corners are not sharp at all) but most of all the ease of how you can edit everything and put your own stamp onto it is great.
You can make and load in your own TVN sounds and even give the styles access to them, editing and creating multipads etc is easy once you get used to how they work, making your own voices is simple.
It's a great box of tricks and it's the first keyboard I've had in years where I can go on it everyday and never get bored with it.