I'm gonna have so fun with this platform I can tell.
Anything that creates an opportunity for cross compatible formats in audio I think is a winner. The API 500 format initially did amazing things for the professional audio industry, and being able to swap in and out different modules into your modules is the next evolution of that. This really bridges the gap between the DIY world and the pro audio world and allows people who maybe wouldn't otherwise of been able to get into hardware really get the best of all worlds imho.
I'm already thinking of ways I can mix and match modules in creative ways, and what order to use them in etc.