I heard from sources online that this game wasn't very good, but I liked it much more than I thought. The parts that I didn't like were the puzzles, which at times were quite hard to solve, and the fact I can't jump and then press X to grab onto surfaces like you could in Rise of the Tomb Raider (I liked this as I made the climbing a bit faster). Apart from that I liked the characters and story and only encountered a weird audio glitch, where the dialogue and subtitles wouldn't work (restarting the game solved this every time).

I still recommend it even if you have doubts, it's usually quite cheap on Steam and if you're going to play the first 2 games, you might as well finish the trilogy.