This and all the subsequent "The Library" FM's are clearly in an unfinished state.

In terms of design and details of the mission this one has a leg up over the other Library FM's but it's still not great. Some areas look quite alright but the ambitions of the author ran wild as it seems and every room, hallway and street is far too long and big. Presumably the exteriors and interiors have been modeled in a 1:1 way to some real world locations but they are a drag because of this. You will walk endlessly from one area to the next. The stealth can be brutally hard or laughably easy in other places because the lighting isn't consistent (Some areas are brightly lit with no shadows whatsoever to hide in while others are completely dark).

You can see the intent of the author so it's not a total desaster but especially the later missions are just looooong hallways and cubes everywhere. It's not fun and it's in dire need of a makeover to be enjoyable.