I say no. I tinted mine 5% to block out the sun because the shade needs to be open to use the sunroof at all. Even when you just tilt the sunroof it whistles to much to be used at any speed. But resale who knows.
Yes, i use mine almost daily. Just depends on you. Vikes, not a fan. Me, always open or tilted. Also depending on weather and or speed i have the back window open which helps with the air flow.
I like mine, although I only open the sunroof about 5 times a year living in Texas. Regardless, I do like the open sunlight throughout the truck with the shade open with the panoramic sunroof.
Screw you Rapere! No, but really, since I have it I do tilt it almost everyday and open the back like you said. Great air flow without messing up the hairdo.