I only have the s61, but I can say that NKS instruments and libraries on the whole, are great. The light guides especially can be really handy. On the other hand, the Komplete Kontrol browser is absolutely crap, and an absolute pig to use. It's also a pain to have to open KK every time you want to make use of NKS. For example, if I'm using kontakt, I'll open KK, choose a kontakt instrument and immediately go view -> edit and use kontakt as per normal. If they would lose the KK wrapper completely, NKS would be perfect.
I actually tried a NI Kontrol S 88 when I went up to London to watch Hans Zimmer Live on Tour a couple of weeks ago. I went to Denmark Street and there was one in a shop I went to.
1 of the Keys was actually broken. Not a great start for an impression. I thought the Keyboard felt like a Toy. I am so glad I got to try it out because now I know for sure that I don't want one and am definitely getting a Doepfer LMK4+
If you can try this stuff out then I really would advise to. You just don't know what you're getting otherwise! Perhaps my opinion would be different if the one in the Shop didn't have a BROKEN Key. But still, it had a Broken Key so I can't help but feel it's a very expensive piece of cheap junk.
If you want to mount it in your desk you have to ask Doepfer to send it in parts, not with the flight case. Your Perspex cover sounds like a great idea!Oh, I like how you have got it in the Desk. Is it easy to take the Doepfer out of the Flight Case? Man, you are making me want one of this things even more so now! I think I would create some sort of Perspex cover to cover the Keys when not in use...