Despite what you are reading in the recent posts, there are a lot of Yanmar failures. Cracked blocks, engine mouting braces, Bravo failures (even with the shower fitted). Barrus, when very, very pushed, will admit to the Yanmar 315 B3x not being completely reliable. The Yanmar also has substantial turbo lag.
If you go to the B1 or B2 you'll be back to propeller torque.
Now it's in the open, you might as well know that a good deal of Thursday night's postings were a deliberate wind up of Crazyhorse. You should ignore those postings because they were invented for the sole purpose of inflaming the conversation. Some of the info. was actually correct, but you'll have difficulty filtering it!
Keep your eyes peeled for folk with a drink problem.
Do some searches here. Much of what you are asking has been discussed at length and so is well documented.