CCPro looks awesome as well. I hope the facebutton placement is comfortable to use/hold 
Well the placement isn't too far off from the Circle Pad Pro's right slide pad on the 3DS (just to the upper right instead of directly right).
And from my experience with
that, I can say that the placement shouldn't be that bad. In fact, being to the upper right should be more comfortable; I saw someone on another forum refer to it as the reverse of the Playstation's layout, in that the joystick and the face buttons are swapped. If you can handle a Playstation controller just fine, you should be able to handle this just fine.