Best hair moment is when you take the cable car from the shanty town to the beach later in the game. It's like an electrostatic explosion.
All in all TressFX seems more like an unfinished tech demo rather than a feature ready for primetime. I'd take a traditional and well sculped "hair helmet" over that kind of performance sapping nonsense any day of the week. Just look how good someone like Ellie in TLoU or Jodie from Beyond looks. Not only does it look way more convincing, it also doesn't clash artistically with the hair on everyone else's noggin. It's the very definition of a pointless bullet point.
It only really looks better than any hair I've ever seen when Lara doesn't move, and when the light is just right, and when it's not going through either her clothes or weapons. Which is not very often. But in those instances, it does look amazing
I've finished the game and I have to say, some set pieces especially towards the end of the game were Uncharted-level of goodness. Really really good. But I still think the Uncharted games are a level above in many ways, first of all the characterisation and 'acting'. And I missed the variety of settings and environments too.