helmets

Hi Just ordered one.. any one have any experience with these? They are modular and weigh only 1200 grams..

I was just wondering if anyone uses the crossover helmets like the Arai XD3 or other simular motard, enduro style helmets that you can take the peak off and remove the visor or use both at the same time. Looked at 3 Arai, BMW and Shoei and they look like really nice lids.