I've heard many complaints about Unity but not so much Maya. 
Here's my thing: There are SO MANY shortcuts built into the system, single keystroke, not even chorded (CTRL+ or CMD+) which will get you in the shit in short order. And the three rows of standard icon menu bars, as well as additional menus in each Panel view… jesús flamingo marimba, this is just crazy.
Sit down with a copy of SketchUp, you can have a basic form built in minutes. Start in Maya, and you'll be wondering about your life choices at the end of the first hour.