I am using one on my Lagoon
380S2 cat and i LOVE it.
I testsailed it in wind
up to 25knots and it is easy to handle, since some of the pressure escapes through the opening. of course this is less ideal for winds below 10knots.
But since i often sail shorthanded i am happy to have a sail that is easy to set and bring down and is less likely to get broken due to gusts.
If you scroll to the bottom, you will find some pics. Sorry, the site itself is in german.
some more pics here:
it is an expensive sails
, but i like it and it works perfect with the autopilot
Just my 2 cents