I finished this mission in about 75 minutes. Got 2700 out of the 4000 or so loot. If you like abandoned castles and haunts and crab men, this mission is for you. First I noticed the amazing libraries and books from floor to ceiling, everywhere. This aspect was gorgeous. The map layout was pretty good, well sized, plenty of verticality, decently stocked rooms, and typical guards. I had no problem getting around and working my way upwards, was actually a bit on the easy side, since there were plenty of shadows and enough water ammo to put out necessary torches. Key hunting is also a big part of this playthrough. I found myself not able to open a few areas until I came across the guard with the key, or the room with the chest/key in it. That's OK, I never felt stuck, but the thing I didn't like is finding the grate tool in the last 5 minutes of play. I could have used it from the beginning when you see all these grates everywhere and no way to open them. Very enjoyable and recommend based on visuals.