I just got my pairs in (true size and half size up) and I'm kinda torn. I can fit both, but I feel TTS will feel snug after activity since the feet will expand a bit and I'll be wearing thicker socks more often than not.
The ride is fairly high, but it is very nicely cushioned! I feel these can replace my ACG React Terra Gobes for hiking and be utilized as a winter/inclement-weather shoe, so it's a 2-in-1!
Random thought, but if one were to hike in these, would flexibility be more of a "nice-to-have" or is it an actual need? That's where the carbon fiber might be a dealbreaker.