We had one in our BMW X5, never again. That car had six trips to the dealer for issues with the roof. It leaked, bound up several times, the shade failed....just a mess, and after the very short novelty period wore off it was just some forgotten feature that always made me nervous driving through the rocky mountains.
This feature in a truck is silly IMO. One of the reasons I'm going to be new to the GM fold is that they seemed to spend money on engineering these new trucks, the important stuff like economy, power, ride/handling, aerodynamics, and usable gimmicks like the rear camera mirror and funky endgate.
I don't need a Tesla style screen, pano roof, or dial shifters in my truck, I want to see engineering and design efforts first and foremost. Although some Ford-style massaging seats would be nice!