The helmet itself is fine.
The fact that Trek copied something already on the market and said it would "Change cycling forever" is ridiculous.
If anyone changed the game it was Smith who introduced the Koroyd Aerocore concept years ago. Smith even makes a ski helmet with it.
The people at Smith are the one's who came up with the idea, not Trek. Trek even copied the color!
https://www.smithoptics.com/us/koroyd
-Tim-