There were a few wearing them on the bsb grid.
If its got the kite mark there shouldn't be much to worry about if it fits well.
Snobbery is all that hold most back :rolleyes-new:
I have an LS2 Carbon effect, bought it from Sportsbikeshop.com before Xmas. I needed it for a Jamie Whitham track day at Croft last week as it has an ACU sticker on the back. It's an okay helmet and it performs okay for the price I paid for it.
I normally run a 4 year old Schuberth S2, its not in the same league as far as quietness and comfort but you gets what you pay for.