If you are on the fence about these shades, buy them.  I love how you can partially open them for light and then close them for privacy.  We even went outside to see if you could see inside.  You can barely see shadows, but you would not be able to identify anyone.  The size was perfect and the installation was easy.  Predrill your holes if installing on oak, it made the installation much easier for window # 2 and #3.  For the money, they are the best deal.