We love our Model X, but the huge windshield can let in more light and heat than is ideal, particularly in sunny Florida. We first tinted the window from the headliner down to the top of the sun visor. The problem is that finding the right level of tint is almost impossible and it looked, quite frankly, goofy. The sunshade took about two minutes to install and works perfectly. Since there are two separate pieces, the driver side can be left in place (which is how I prefer it) and my wife can leave her side off and enjoy the more open/airy feel. Great solution at a great price.