A very well realised atmosphere of a neglected, shabby neighbourhood is what draws your attention right from the beginning of the mission. Mangy streets, rusty machinery and houses built on top of each over. Wires, catwalks, ducts and pipes connecting squalid buildings together. It's all very impressive looking.
Unfortunately, good acrobatic skills are the prerequisite. With a lot of navigation where precise jumps are the requirement, and fall leads to death or eats a good chunk of your health, constant saving and loading are what gets you through.
Additional objectives added after you tackle the main mission goal mean that you'll have to do one more sweep of a whole map if you went exploring first and tackled the main objective later.
Blueprints key and a way to get the incriminating evidence are perhaps hidden too much too well.