So, this game is pretty awesome!
Visually it is gorgeous and runs extremely well on PC. It's an excellent port to the PC, to say the least, and the controls work really well with a gamepad or KB+M.
Story-wise, it's a much more matured affair than the previous games. It starts out seeming like it's going to be a harrowing experience, emphasizing Lara's frailty, but Lara quickly gains seemingly-superhuman abilities to regenerate health and dispose of her foes in some pretty gruesome ways. It's a little shaky but it doesn't take you completely out of the experience. The gameplay is fun!
Crystal Dynamics have veered away from the auto-aim combat and it definitely a lot more like Uncharted now. The game is not breaking any new ground but that's not necessarily a bad thing because it does it well.
Anyway, I'm gonna spend some more time with it and see if my first impressions persist throughout.
EDIT:
Oh and I have tested out TressFX, it looks fantastic but it is definitely a heavy-hitter on the framerate when hair is onscreen. Some have speculated this is due to Nvidia not optimizing DirectCompute processing on the GPU and have focused more on their own CUDA. Time and driver updates will tell.