A little late to this party... but I have used the KK88 for the past couple years and recently had to leave it at the studio I was working at, when moving to my new studio. After some research I learned that Studiologic is the front end company of Fatar and also learned that their SL88 Studio has the same Fatar keybed as the KK88... for half the price. Since I've basically been using that same keybed I decided to give it a try. The SL88 arrived and is built like a tank compared to the KK88, and to my surprise, the keybed itself felt better... its MIDI response seemed more smooth as well. I found that I never used NKS integration with the KK88 so I'm missing nothing having this SL88. Even though I could live without the awkward XY stick controllers, I'm very happy with this keyboard, and because of its price, was able to put money elsewhere.