This is my short review for A Visit to the Baron, please note that the review contains important spoilers.

Pros:
+ Beautiful and well-designed outside area. Loved the cemetery and multiple civilian houses I could get into.
+ Exploring the catacombs was a sheer pleasure. In my opinion, this is the best section of the mission. The skeleton and the lich were a nice surprise.
+ In general, the attention to detail is tremendous. It is clear that a lot of work went into designing the baron's monstrous castle.
+ The lack of annoying key hunts or puzzles. The objectives weren't too difficult, either.
+ I liked the variety of new colourful skins and objects.

Cons:
- The whole level is simply too big and given the confusing, maze-like design, navigation is very difficult. This is only my opinion, but I think the mission would have been much more enjoyable if you had scrapped approximately 20% of the factory, 30% of the castle, and left the catacombs as they are. This would have allowed you to improve the flow of the mission.
- Many parts of the castle don't make sense in terms of architecture.
- Though I enjoyed some of the readables in the factory and the presence of female necromancers/vampires, the story overall didn't captivate me. Fetching the body of Ballsy was just a chore and I couldn't connect emotionally to most of the personal stories presented in the readables. Plus, the texts could use some proofreading.
- As it has already been said, I didn't like the semi-transparent curtains.