I found it in the store, while I was looking for a Axiom 49. Axiom I thought the Air was not only pretty, but it was more developed. Since it costs twice the axiom 49.
The hit is good. The manual is clear. The configuration also, and the screen is readable and practical. This allows you to select what you want where you want.
I kept it a weekend time see me alas, it was not appropriate. I had other controllers, but no keyboard master in the genre. What I like most is his designe, ergonomics, you plug it, you download the driver (for Windows Vista 64bit), and you do toy.
Until you realize that you can not assign MIDI signal on / off or the pads or buttons, let alone the keys. Thing is simply axiom 49.
I called M-Audio technical service who confirmed they remove this option on the Air series! They did not answer me when I asked: "why axiom air costs 2 times more than the axiom". Of course, with the axiom Air was the hyper-control, which to me is irrelevant because I work with Ableton Live and not ProTools. There are some pads and more, and that's all. It is an expensive pad in my opinion. So value, zero, for a simple keyboard report is expensive, especially as the brand offers more for less euros.