I don't have much use for the cabinet maker (I custom create ALL my models) but I do like the other plugins. The Furniture Dimensions plugin saves having to add individual dimensions when needed.
The MaterialSelector plugin is great but please add the materials for walls and rooms.
A tip: change the transparency checkbox to a spinner or slider to set the level of transparency (use at least 0.05 increments). A preview of the selected material would be a nice addition, especially with textures and transparency to see what it looks like.

Great work, you have put a lot of time in this. Thank you!