<p>The biggest problem with Office for Mac is that it isn’t a great Mac app, but it doesn’t behave exactly like the Windows version either. The Office for Mac team is in a tough position: they can make a clone of the Windows version and have it feel strange on the Mac, which has very different UI paradigms, or they can make a very Mac-like app that is nothing like the Windows version, which negates most of the reason to buy Office.</p>
<p>They chose an uncomfortable middle ground. Its just different enough from the Windows version to have a learning curve, but it still doesn’t feel like a Mac app. In 2008, after 2007 introduced the Ribbon interface (which I like; its like a larger version of iWork’s inspector built in to the toolbar), the Mac version added a template chooser that visually looks similar to the Ribbon, but does something completely different. It just feels reallh odd.</p>
<p>There are some other issues as well. For instance, Office 2008 feels slow and bloated to me, and there are some minor file conversion issues. All different versions of Office can exhibit this problem–2007 might render a complex document slightly different than 2003.</p>
<p>In my opinion, few people actually need Office. They need a good word processor, spreadsheet, and presentation app that works with the industry-standard formats (the Office formats). iWork fits the bill nicely. It’s clearly a Mac app, but it does all of what most people use Office for very nicely. </p>
<p>If someone truly needs Office for highly complex documents or something, I’d suggest running the Windows version in VMWare. There will be fewer compatibility issues, and the interface will, literally, be the same as on Windows (because it is on Windows). But again, if you can’t think of a reason why you need Office, you probably don’t.</p>
<p>You mentioned using OneNote. There are a lot of great Mac notetaking apps, including Circus Ponies Notebook and OmniOutliner. If none of them work for you–they’re not OneNote clones–you can always run the Windows office in VMWare.</p>