I've got a Caberg Justissimo, with the flip down internal sunglasses, and it's great. Fit is similar to my Arai Corsair. You can detach the flip up part and wear it as a 3/4 helmet, and it's the only flip up hemet that met ECE standards as a full face. It's light as well; it feels like 1/2 the weaight of any other flup up I've held.
Downsides: it's got a big shell and the vents are only ok. I'm very pleased.
--The Fox