Fusion works, but its full-screen mode is rather unfortunate—this is putting it kindly. While running full-screen, when you drag the mouse to the top of the screen, the Mac menubar appears. There's no way to turn this behavior off (please prove me wrong!). I honestly can't imagine a case where anybody could prefer this, and to have no option at all to disable it is a real disappointment. When my license expires, I'll take another hard look at Parallels.