The BioniX system on my 2012 Trek Ride FX + has been one of the most reliable things I've ever paid for. The battery was replaced by Trek right at the end of the warranty (stopped charging) but everything else is original and runs great in 2018 with over a thousand miles on it. It's rearwheel hub and 48v system makes it easier to pedal in full assist than the 2017 Super Commuter+ 8S, but very different bikes.
Seems there would be healthy market on entry and mid-level bikes, home builders etc left for BionX but Bosch and others may be leaving them in the past.