I find the ribbon space consuming and limited. Many of my users even insist I find them a copy of office 2003 as to the day they do not feel comfortable with the new interface. I personally use 2003, 2007 and 2010 versions of office, in addition to open (libre) office. But the idea that the ribbon system is good for ordinary users is nonsense. After strugling to learn one way of doing things, forcing them to re-learn something so grandma could learn too is nonsense. I really do not believe that office's main users are barely computer literate home users, it's main use is in the office. So why not experiment with works? Until recently it had word 2003 included. Mind that 5 years have passed since the introduction of the ribbon. If there were real competition on this market, office would be dead after this kind of blunder.