So, I've been playing this over the last 3 days.
I'm surprised at how well written/acted it is, considering it's not particularly a very deep experience. I remember people making remarks about this when it came out, but I brushed it off as that "new game feeling causing temporary delusion". It's been a nice discovery to get an actual feel of playing a virtual movie.
The gameplay has been fun, and it's exactly what everyone said it was: Tomb Raider's exploration combined with Gears of Wars' cover system. I've enjoyed it, even if it got repetitive fairly quickly, and doesn't really offer anything outside of what I've already experienced. I think Yahtzee's review stated it perfectly when he deemed the title "safe".
Visually, I've been extremely impressed. The game is overly lush and I love the design and look of everything. In fact, it's finally done what I've wanted a Tomb Raider game to do for a long time, and that's create an environment that can be traversed without being overtly obvious on where to go. For the longest time it has irked me to play a game and the developers make it a point to practically put a sign saying "CLIMB HERE" with crudely-shaped and obviously-colored cliffs.
And I see it's really on the short side, as my last save was just a few minutes over 5 hours and it's already at 75% completed. I guess that's a good thing, though, because the longer the experience drags on the more monotonous it'd become (and I'm one of the few who doesn't mind a game being 6-8 hours, instead of 15).