I now have two of these anti-sun, anti-glare visors, one for each car. I can say without a doubt that they both work well and are pretty much equal in their performance.
This one was much easier to install than the first one because I already knew how.
The yellow visor is great for daytime driving in the sun.
The darker visor is for city driving at night. I live in the countryside, so can't use it much because the roads lack street lights, but when I'm traveling it sure makes a difference and really cuts down on glare.