NOTE: I played this mission on Expert. One of my biggest issues with this map - the incredibly aggressive loot goal - may not be as big of an issue on lower difficulties.

There are a lot of things this mission does well:
* amount of content (took me ~105 minutes to complete)
* attention to detail
* variety in environments
* rope arrows
* use of ambience

The story is fairly basic but definitely above average.

Unfortunately this mission is also quite frustrating due to some awkward design choices.
* The loot goal is almost 100% and some of the loot is virtually impossible to find without using the console.
* While there are two main objectives that can be completed in either order - you are effectively punished for going in one order by having to do some serious backtracking and having seemingly nonsensical readables/level design. This probably added 30 minutes to my playthrough.
* The AI is pretty thin and easy to circumvent.
* The route to the secondary objective is creative but wholly intuitive.


Overall it's still an enjoyable mission - but I got frustrated enough to get sloppy with my sneaking and wound up using the console to get the last bit of loot I needed.

Yes, enormous loot goals is the main reason why I rarely play missions on expert and play on 2nd difficulty instead.