The trabec fits me really well and as above having stacked in one it works well too.
^ 'it saved me' - well blow me sideways, thats what helmets do otherwise they'd be shiny hats 😉
All helmets sold in the UK have to meet/exceed standards.
I really like mine - it fits my head well. All helmets are shaped differently and the best protection is the one that fits your head. My previous Giro was sized the same but would blow up if I was traveling fast enough! The POC doesn't move on my head at all because it's a great fit. To the post above about it moving because of lack of padding I would argue that it's more because it's not the right shape for your head.
I really don't see the issue regarding build quality. Seems similar or above other top priced helmets. Wrap around shell, good straps, spare pads and a bag. Expensive and a bit of a fashion item but you can get them cheaper if you hunt or it's an out of date colour.
It's a helmet, what were you expecting? A cheap 30quid helmet will protect you just as well.