No ma'am. I don't like it. I don't like it at all.
Flat-6, fine. Even a flat-4 would be acceptable. Or an inline 4 (which means it's no longer a Boxster, but a Linester or something... 3-cyls belong in outboard motors or in dirtbikes. Not sports cars.
As has been said, they're inherently unstable. My parents have a boat with a 3-cyl outboard. It's got a lot of vibration issues.