My november 2018 +4 comes without powersteering and with 14" MotoLita.
With my 175cm lengh I "rubbed" between the seat and body (both bodies). After a short time the seatleather looked scratched and demaged. To reduce the rubbing I changed over to a 13" MotoLita.
The summary:
-rubbing reduced
-better steering on small twisty roads (more direct)
-a low speed (parking) a little bit more heavy, doesn't matter - no, I'm not superman or Mr. Schwarzenegger
-better sight on the rev counter
-a little bit more legroom for enter/leaving
The bad things, and that's what I didn't think about:
Less sight on the gauges in the drivers front. Fuel and wate temperature
Some (interessting) warninglights in front of the driver.
So in my eyes for the pure driving the difference isn't so great, the better steering on twisty roads is the point.
But missing some informations about the cars health is the thing of misslike.
René