Fader controller to complement the CC-121: Anyone using one?

I am considering exactly the same. I have looked the X Touch Compact.
There a very good video on YouTube about it tho.
http://m.music-group.com/Categories/Behringer/Computer-Audio/Desktop-Controllers/X-TOUCH-COMPACT/p/P0B3L

I am thinking about buy this one. Considering the case.

More user experience would be welcome