Originally Posted by Colbytech
I did mine, works great except for a couple of things. One is that you have to open up the door apart from the screen door to move the blinds up and down and the second is that the accordian blind sometimes bunches up as you open the blind. You just have to be aware of that and do that action more slowly. The bunching is a visual distraction, not a functional one, it doesn't appear to harm the blind.
Our kitchen door has a window with mini-blinds inside that work the same way. I'm familiar with operating the sliding control to fast for the blind to keep up, but I didn't think about the screen door interfering with the operation.
Some folks said they installed theirs upside down (intentionally! ) but I really didn't understand the advantage to that, especially with the screen door issue you pointed out. Did you install yours upside down, too?
edit: just watched the video on Amazon and see it's not a shade between two panels of glass like I thought. Still nicer than taping isofoil over the window!