I guess I would think this might get pretty gross feeling if you were to do any extended riding with it (i.e. sweating into, essentially, a plastic collar). i can also see where it might be difficult to use with certain handlebar configurations.

Finally, before I'd want to use it, I'd like to see how it does in actual practice and gain some understanding of it's effectiveness compared to regular helmets and any recall history. I'm thinking this is not the one that I'd want to be the early adopter on.

So, I'd put this one in the "wait and see" bin for a while. Good to see that someone is starting to challenge the helmet standards already out there. Current helmets are mired in the '80s due to standards that have been placed in law. Also good to see companies (I.e. MIPS Helmet through POC and Scott) addressing the issue of DAI damage (diffuse axonal injury - shaken baby syndrome) that is usually a big component of any concussion and has long lasting effects.

J.