Well there's awkward, and there's unusable, there's no way you can hold the controller normally and use that keypad. It looks like it would even impair normal trigger/shoulder access. Perhaps I'm missing something there however.
I think the kb controller interface is a good idea for a lot of games (and home I suppose), but I'm not sure that's the design to make it happen.
its raised above the the controller so it shouldn't mess up the shoulders