I've you're talking about the in-channel rain visors that go on each window, I've got them. I've had them on previous cars because I like to keep a window cracked, and I don't need to worry too bad about rain showers. I also can crack a window while driving without having rain come in.
That said, because of the really high belt-line and already short window opening, I find it awkward to have the window full-down, and rest my arm while holding the top of the door (I find it a comfortable position).