I have the 11m... love it. It's my one kite quiver for 15kts and up.
I could basically say it's awesome for everything, end of review.
To be a bit more balanced I'd say the biggest negatives I could find would be it's probably not the best for unhooking (ok but there's better kites out there), also it's more of a pivot than a sweep turner so C kite loopers wouldn't love it.
The super light bar pressure can be deceptive - when I first got this kite sometimes after launch it would feel like there's no power in the kite, then I'd pull the bar right in and dive the kite and be pulled out of the water so explosively I could only just keep the board under me. Now I love this 'feature'

http://www.kiteworldmag.com/2008-kite-tests/ozone-instinct-edge/