I drove one a couple weeks ago when I was looking at new coaches. It was a 34' bunkhouse model. I have a 34' super c and it was quieter than my 8.1 gas coach. I think the engine was a bit louder, but much less wind noise. I also drove a supernova with the 300hp detroit and a 350hp cummins rear pusher all the same day. the independence was much better than the SN and of course louder than the rear pusher. All of them were better than my 2009 Super C in noise and ride.
2009 ultra 6341