Installing the solar shades with a Q Box wasn't very difficult, but I was alarmed when I thought I hadn't ordered the right height. A quick chat helped resolve this, as it was just about moving the stopper on the chain to adjust where the shade stops as it gets rolled down. I also installed a much wider (50+ inches) solar shade but currently have an issue with it, as it won't roll up all the way to the top without significant force and damage to the fabric. Alva's support hasn't responded to me at all yet on how to fix this.