Doesn't sound like a massive upgrade to the Evation system. The ride 50 and 60 are basically the same except the motor and bb are integrated in the 60 and separate in the 50. The 50 upgrades from the Evation are the engagement amounts and some improved thermals, which allow 350W rather than 300W in the Evation system (which would throttle). It's an evolution, not a revolution. My Evation bikes are 55nM. Neither is close to my Forestal in power (60nM) but they're lower in noise level.
The ratchet you notice backpedaling is Fazua's version of disengaging the motor like Shimano and Bosch. I almost never back pedal so it's not an issue. I'd rather have that than the noise from my EP8. It's only there if you go looking for it, or over tighten the cranks.
My bikes have both BLE and Ant+ and connect to my Garmin. I can't see that the newer systems wouldn't. I do remember that it wasn't as easy to set up as my Levo, but it's there.
I'm upgrading my eZesty to a ride 50 but I'll still be able to use the Evation motor, so I can compare them directly.
Gordon