I find the experience of the Opti mid motor, so much better than any other approach, including the Bosch like attempts at mid motors that nothing else means much to me. Nowadays all of these motors and batteries have more power and range than I use. But I am a road biker not trail. The Allroad and Carbon are also essentially silent, which is pretty cool also.
I have known Jim Turner since like forever, and he is the real deal, honest to the core and an incredible inventor. wichout his innovations we wouldn't even have mid-motors, in my opinion, of course.