I find it increasingly frustrating, that the multi-category tag is treated like the odd stepchild, instead of the wise leader.
As an example, it does not cover all categories and can not tag sweeps and railings.
It is also frustrating, that it is not possible to set up multi-category tags as the default tag in the "Loaded Tags And Symbols" menu.
In the end, in 50% of our tagging needs, we pull data from the same set of master data, and might have 5 parameters that we combine in different ways (for example Type Name, Assembly Code, Assembly Description, Type Comment, Comment). I could easily see that the same multi-cat family type, could find use in 80% of the cases.
Specialty tags like rooms, spaces, walls, doors and others still find a lot of use, but how many of those actually use info that are truly special?
I could certainly have a cleaner and clearer production, if I was sure, that the multi-category tag would/could be the default.