As a new Harley owner, I have subscribed to the Road Glide forum. Believe it or not, they have a helmet section and much to my surprise several members praise full face and modular helmets. They like the Nolan 104, as I do. Have had mine three years, love it.
My GF dropped it in gravel after it was a week old, scratched it a little, so I got that over with.
Things I really like about it are the big eye port, the ratcheting chin strap, the release mechanism, the internal sun visor and the ease of shield change.
Vents ok, nothing spectacular. I think it is noisy, but I always wear ear plugs anyway. It is quieter than my old N100 and N102s from years past.
The one thing I do not care for is the size of the outer shell, once you get past a medium, the size increases to accommodate big old heads like mine, and it is huge.