Had been wanting to purchase sliding panel blinds for the patio door for quite a few yrs now.  Was hesitant to order without actually seeing the material and color in person but finally braved it. 

The panels let in a little bit of light but not too much.  Because of the way the panels are constructed, when I close them at night I feel that it is harder for someone to see inside and that makes me feel better.

Having had vertical blinds in place across the patio door for many yrs I was worried that my cats would wreak havoc with the panels but they do not bother them.