In Microsoft office, I often found it hard to find the button I was looking for because the buttons weren't group with similar buttons in the toolbar, and were distributed randomly. I prefer the tabbed+grouped layout of the ribbon because it fixes that organization problem. All the basics are in "Home", if I need to adjust the layout I go to layout, etc. Then within those tabs, common actions/properties are grouped together. I never want to go back to the old toolbar layout in Office 2003.