I upgraded to Office 2013 recently, on Windows 7. The all thing got super slow and I am still fighting the ribbon, plus this flaty thing on Windows 7 is just odd. Yes my computer is 3 years old, yes some linux distros are worst, but when somebody gets this kind of experience over and over, when he has a choice, he goes for something else. Sorry, maybe they have super cool products, but I won't touch them even with a stick (plus they have a cost, or not?).