OpenOffice still looks like hell if you have OSX (window-intrinsic menus, bloated drop-downs, reliance on illegible icons), but it is fast now - I've been using it for a few days and found it altogether, better than its predecessors. Compatibility with the pie-in-the-sky Office 2008 (mac), 2007 (windows) is more or less spot on - in some cases, it is spotty - but it works really well.
I am not a power user, but 3.2 has tickled my stubbornness into thinking: I may just switch. Naturally, if I was a Linux user, I'd probably not think twice - the free software does more than most users could ever need, does it for free, and really kicks tail. And, if you are a Linux nut, integration with the OS design isn't something you can really luxurise in. That said, Windows isn't much better.
A thumb up for the first time!