This is my first 88 key MIDI controller and I simply love playing it, but however it has at least one critical flaw. Especially when used with VST instruments - even with the official NKS support mind you. This thing can't reach the lowest octaves (-2 OC) so I could quickly change my articulations etc. Even my tiny Komplete Kontrol M32 is capable of doing this!
There are a plethora of VST instruments now almost completely unusable with my S88 thanks to this brilliant design decision. Entire libraries of big name products (for example, VSL) suffer from this same issue.
Certainly this can be fixed with a small firmware update?