Mike
Join the Etec club, a nice 115, a lot lighter and 3 years before your first service.
As Adam said, a little noisier on tick over but certainly a lot quieter than the traditional 2 stroke. But once it's under way I would say that they are no louder than the Mariner and with the extra exceleration from the 2 stroke it would get you on the plane quicker.
Decisions decisions.
What ever you choose, I am sure you will be in love with it like I am (Sorry Mrs Mike, I am certain he loves you more!)
Good Luck and look forward to seeing you out there