Their nickname is "OPTI-BOMB"
Among other things they are notorious for issues associated with the coil packs. They also had issues where an alarm would go off for no reason and throw no codes. It happened enough to where the owners actually started ignoring the alarms and then, there really was an issue and... boom!
Many issues are associated with the impeller. Although people (including marinas) were changing the impeller regularly, many of them (including Marinas) were not aware of a pre filter that must be cleaned. I watched one marina install a new impeller, got the boat home, looked at the screen and it was full. Called them back and they had never heard of it!!!! Lots of online posts about it. Pre-filer (or screen) ends up getting clogged causing insuficiant suction water to be pulled into the motor. It will send an alarm however it will not show much on the computer codes.
I believe, if memory serves me, they also had issues with the oil injection. A lot of guys (I think there is a thread on this in the mechanics corner) were removing the injection bottles and actually mixing their gas!!
I have OCD "Obsessive Crappie Disorder"