These blinds work great - better than I expected! I installed them in the 4 windows in our great room. My husband couldn't believe the amount of light they block. Only complaint is that at night (with the lights on) you can see right in the room if you're standing outside. In other words, no privacy. (During the day you can't see anything - great privacy. The problems's just at night.) Luckily we don't have neighbors behind us so it's not that big of a deal right now but we may hang curtains in addition to these blinds for when/if we do worry about privacy.