Honestly the only difference that I noticed on the new models are the drums, but for me the drums are the most important sound in a song. I always hated how the drum voices sound on Korg and Yamaha Keyboards but now with the Genos and CVP 809 they start to sound more real and natural. I wish you could buy more drums voices like on the virtual instruments that I used. For example on Superior Drummer 3 you buy the software and it comes with a core library that has 7 full kits and a lot of extra kicks, snares, hit hats, etc, but you can also buy expansion packs called “SDXs” that have been recorded by legendary music producers or engineers like Bob Rock, Chuck Ainlay, Al schmitt, etc, and believe me they sound amazing.