Nah, never had any real problems with them. The only time I shut one down was on landing at Detroit Metro, a chip detect light came on right at touch down, shut it down since we were already on the ground and taxied in, no one in back knew any different, just a bad sensor...........and before anyone asks it was a smooth touch down :)
They were a pleasure to operate, you always knew you had a solid aircraft behind you.
Unbeatable for their class of aircraft.