This is a greatest hits tour of all the reasons why Thief is so amazing, turned up to 11 in every single way. Genuinely better than both 1 and 2 - the weakest mission here is still great, and would be up there with some of the best in either of those games. Varied and massively replayable levels, with big maps that are densely packed with great level design, lots of side content, and crazy attention to detail to make the City feel even more real and immersive than before. The only way one could like Thief and not love this is if you don't like the horror side of these games (especially arachnophobia) - this is easily the scariest one of them all, but that's probably just another plus for most people.