Thank you for making a feedback thread about build mode. :) I wanna share mine.
While Build Mode has been improved, there are my suggestions that need to be added and more improved. I'm also listing the bugs that I've encountered. Since some of them are already mentioned, I'm going to suggest some things that haven't mentioned yet:
-Agave Adobe seems to have trims even though it doesn't foundations. Here is the pic:
http://i.imgur.com/pWo8i7k.png
-Possible placing between an object and column, especially if I want to place a bench beside a column.
http://i.imgur.com/fCoc016.png
Well, that's all my ideas I got. More to come :)