Okay, I have mine now. It seems like outside of Steam, it only emulates a mouse + keyboard and is recognized as such. If you add a game to Steam, you can get it to emulate XInput and it *should* work with XInput even with AGK.. Outside Steam, not so much unfortunately.
EDIT:
Yes, confirmed that it does work with the AppGameKit Joystick commands
if you add the game to steam as a "non steam game" and set the controller to XInput mode. Seems kinda dumb that you have to run from within Steam to get the XInput mode.
Using AppGameKit v2 T1 + T2
Systems: Primary: Windows 10
Secondary: Mac OS X 10.10