I sometimes switch between a Carerra rear hub drive and my wife's Bosch mid drive.
Personally I don't like the Bosch, it gives no feedback, you do at times wonder if it's actually working its that passive in feel. Some people will.like that of course.
The hub drive, you feel it, you feel the acceleration, the kick, it just a personal thing, I like that.
Chain wear ? I believe (with simple unproven logic) a mid drive will wear the chain quicker, its pulling a chain that's already under tension with some considerable force.
Hub drive pushes the wheel forward itself and the chain above should experience no more force than normal.
Rear hub driver for me every time...but its a very personal thing.
That must be just programming on the controller. It's the opposite for me. The Cube Reaction with the Bosch drive gives a real kick on the higher assist levels. The Orbea is much more subdued, but it's obviously a much less torquey motor. The Woosh conversion I ran for a while on my Giant hybrid did give a decent kick as it was very much an on/off ghost pedal kind of deal.