You can swap em out... Right now in Cad class i run the ribbon and about 7 toolbars... Its pretty easy to get used to, but my professor is a hardcore toolbar command line guy and his is almost nonexistant....

I tried to mock it up today, but ran out of time... apparently we have a group project to design a house, or atleast draft a house to specs...

 

I haven't had too much time to mess with it, I've been trying to get used to the ribbon in SolidWorks and Inventor