Well, I bought the bloody thing, thinking that I needed it for work. At the time, I did, but it was because the employer was approaching their own work inefficiently.
Office is clunky on a Mac and is very bad on Windows. Microsoft have disabled many of OSX's great features that make work quick and efficient:
1. Save as keyboard short cuts are gone
2. Paste unformatted text shortcut is gone
3. Expose doesn't work properly - often randomly switching between windows when copying/pasting text
4. Backspace to erase and entire entry from the save dialogue is gone
5. Takes forever to open up and when it does, you can just have an empty screen, a document HAS to be open (takes time).
6. The unbroken interface bits are horrid, many of them icon-reliant rather than text. If you don't know what the icon means, you'll have a bugger of a time finding what you want.
There are many other reasons that I hate office for Mac, but mostly, it makes the Mac a completely useless tool. Whatever goodness you derive from OSX, you can throw out. Maybe that was Microsoft's intent all along, I have no idea.
My iWork 08 is far better than 2008 Office, not to mention the even more confusing '11 version.
For 19$, I'll love Pages, though I'll probably skip the other purchases.
i love the pricing. i wince every time i think of getting office