What’s interesting about Windows -> Mac switchers is that they typically feel a need to vocalize their experience in one way or another. That’s pretty remarkable, because it means that somehow Apple knows how to make evangelists out of users. I’m not sure any other company on earth does it as effectively. Apple’s installed base isn’t just an installed base: it’s a field marketing department.
Aside from very specialized computing tasks, there is literally very little reason to own a dedicated Windows machine anymore. I’d proffer that for the great majority of users, a Mac would work just fine if they do a modicum of research and go into the move with an open mind and the understanding that the Mac != Windows and there will be a learning curve. After that, it’s all good.