I have the opposite opinion: autoCAD is great. A true emacs for CAD. It has a really steep learning curve but once you get it is as essential as Excel and a tool for life. You can draw everything there and (like emacs) script it with lisp.
3: I'm an architect (housing kind).
Newbies use to hate Autocad. I hated it in the beginning also. It will take at least a couple months until you start to get some profits from it. A couple years to get proficient.