I have around four years on various MU-2's, I enjoyed the machine a lot, the last airplane was the Marquise, it will cruise at 300 kts and burn 100 gallons / hr, the long models are a little slower and easier to land and takeoff, the machine is built like a tank, the MU-2 developed a bad reputation in the 70's and had to go through icing recertification, I personally have operated in heavy conditions without any problem, some of the Bendix fuel controllers were dodgey but otherwise a very dependable aircraft.
D.L.