Yeah, there's nothing much to add here to what the other reviewers said. Everything is great in this mission IMO, from readables to the mysterious atmosphere itself to the level design and the flow of the mission which keeps you hooked, and many more! Replayability is high, which means every time you play it, you'll probably discover something new. It took me 3 hours and a half and I only got half of the loots and only 2 secrets. This mission shows how TDM can rival Thief's fan missions in terms of size and details as I remember reading somewhere that this game would never be able to handle such a large mission as the ones that are typical to Thief. This proves otherwise. So, if you haven't played it yet, what are you waiting for!