These new Faderfox units are very well constructed and offer a great amount of midi controller knobs and / or faders in quite a small footprint device. the unit feels very well built and the knobs have the perfect amount of resistance allowing for fast or fine tuning of parameters and the thing is light enough to be taken on the road without it being too heavy. Linking a 2nd Faderfox device to the first one also gives you the potential to have 2 boxes of Midi control only requiring one USB cable. Users of Elektron boxes also get other convenient features..
All up, this and the PC 12 are rock solid.. The only tiny drawback is the English Language version of the manual could be improved but all in all, very good.