This mission is pretty tough compared to both the previous ones and a few later ones. The mechanical elements put in Thief II are used a lot in the bank. The bank itself has many points of entry, and is a huge structure. It's very hard to navigate with all the marble floors, security cams, robots, and, of course, the guards. Yet this adds a tension that only Framed really contained as of yet. My personal save system (only save when going either inside or outside the main building) worked perfectly here. When in the middle of the bank, exiting is not easy. Sometimes, it's even hard to really know where to go, despite the insane amount of detail and clarity contained within. To me, that's a sign of excellent difficulty design.

The atmosphere is not creepy. It's not really oppressive, in a sense. The right word to describe the atmosphere would be "impregnable". Breaking into the bank feels like it's supposed to: a nearly impossible task. It isn't as impossible as it seems, but the atmosphere conveys a feeling of entering a place where every step along the way is like going against the river flow. You shouldn't be here. Everything you do here is forbidden, and dangerous.

The story for this specific mission isn't all that interesting. Garrett's goal is to find the incriminating evidence against Sheriff Truart Karras put into his vault. It's a step in a great overarching plot, but it's a step that on its own isn't super exciting (that comes later). The readables don't really give you much either. There's a few that show you that rich businessmen are corrupt and greedy, and that's it.

Overall, this mission is the peak of Thief II's excellent gameplay, providing exploration and challenge while being clear and highly detailed.