Reckoned to have killed more Israeli pilots than enemy pilots. This is what happens when you stick a high torque Junkers Jumo 205 engine on the narrow tracked small airframe of a 109G.
The Fw 190D was much improved by re-engining with a Jumo 213 and the Me 109D had the Jumo 210. So I do rather doubt the claims that the Jumo 211 was an "unresponsive bomber engine", more likely someone did not bother to sort out the throttle set up.
However, I would agree that the paddle bladed prop made the 109's notoriously tricky landing behaviour even worse. I gather that the 109G, with the DB 605 was reckoned to be trickier to land than earlier models so the "Mules" unpleasantness was simply a continuation of a deteriorating trend.