Extremely difficult to install. In step8 it states" more force may need to be applied in order to get blind to click into brackets. Two people may be require..." This is a gross understatement! It took over an hour to perform this step. We had purchased two units and they both were the same issue. To add insult to injury they do not provide the room darkening as expected. Operating the wand does not close the blind tightly and hence outside light enters in to the room.