For what its worth, I got a C3 when they first came out because a few places had great discounts (don't know why) and throwing in freebies like helmet bags, Optimate 4 and other stuff, think I paid £299 or 309 at the time...about 4 or 5 times more than I'd paid for a lid before, but was feeling slightly flush, and really liked the fit and the quality...all the flips I tried suffered from creakiness, but this one to me felt more solid. I liked the fastening, internal visor optical qualities and the visor with pinlock was quality. I tend not to drop lids these days (oh-oh!) or scratch visors (goody-bloody two shoes I am!).
Biggest probs for me were :
1. insects getting in vent on top, dropping onto bald head, very itchy as they skate around wondering what the hell has happened! Took vent apart (easy) glued sliver of plastic mesh onto detachable vent cover - presto!
BUT a £300 helmet shouldn't need that, for fks sake.
2. Getting it apart to put the Autocom speakers in was very scary - its got to be the awkwardest lid to do this to! However it was done, with no ill-effects (nurse had to swab me forehead every 10 seconds though!).
Now, I love it...I don't do Juvecu's miles and it last me years, hopefully (I know you're
sposed to change 'em more than I actually do...)