It's prettier. I'm not much of a 'power' user, so to me its not too different. Except for this dang autocomplete, which I cannot figure out how to work. It is extremely annoying. If I type 'north', it may flash up 'northeast' Last time, I was working on a list. When you normallyy hit enter, it creates a new bullet. When you hit enter with the autocomplete, it gives you the word you are typing. The only way for me to have typed north, was to type north, put a space behine it, and then hit enter.
And I dunno why, but if they were looking to improve on Office, why did they put in the paperclip?