I've managed a 2007 62' predator since 2011 with MAN 1100's. Aside from the hour meter boards needing replacement and a few sensors, the engines have been flawless. They run great and are a perfect fit in that boat IMO. I am not a huge fan of Multiple Trouble Units and their myriad of sensor issues. I delivered a brand new 55' Uniesse with Arnesons around 2014 1000 nm's. In anything over 1' or 2', we had to back it down to 24 knots from 34 knots. It pounded like crazy and the COG was way off. The build quality was way off also, we had an AMAZING amount of issues. Literally, every single day we had a major issue pop up...….VIP flooded with hot water from a 90 degree fitting you couldn't access...… raining hyldraulic fluid in the other stateroom because they used screws on the joinery that had 1" of the tip sticking out past the wood it was secured to, and unsecured Arneson steering high pressure hoses rubbing on it. Fresh water leak. A Flap that was stuck down because they used crappy hose they knew was a bad batch. We had to take the hose off and swap it with the pressure side to get down there. A major freshwater leak, tranny filter broke the plate above the gear it was mounted to and wore a hole through it, electrical issues, finish issues. on and on.