With the way reports are complaining about how desktop in win8 is a copy and paste job poorly adopted for touch from Win7 one would think that MS Office 2013 would be exactly the same as Office 2010.
Neowin says there are some considerable improvements.
Anyone who has doubts about how different it is needs to just use it for a day.
They have completely updated the way documents type. You really need to use it to see how fluid it all is. It makes typing emails much much nicer.
If the only difference was the new typing and typing animations then I would still buy a license - the sexy new look is just a bonus.