webbikeworld reviews consistently mention a venting/fogging problem and maybe something a little cheesy with the chin bar lock. I have a Nolan N100 and an HJC SyMax. Both are good hats, but a bit noisier than a standard full (noted as well with the Roof). I prefer the snug fit, quik chin buckle and removeable airblock on the Nolan. Also I believe the Nolan is the only modular with metal-to-metal chin bar attaching.