I got a nice little Nimbus controller a while back, and it would be great to use it with my Macs for development. The support for them so far in Unity is only partial - at the moment only one button and two axes work, which doesn’t really help much with Unity development. It seems like something that should be easy to improve, and the pressure-sensitive triggers could be made into axes.
I’ve reported it as a bug (case #827830), and I think the 5.5 beta would be an excellent time to fully enable MFi controllers also on macOS.