To my eyes, the Photosync looks very similar to Crystalline. It looks brown to you; to me, both Photosync and Crystalline look green. Llumar, Suntec and Xpel ceramic tints look neutral. And as you say, I think the aesthetics outweigh any practical heat deflection advantage of Photosync and Crystalline.
Yes.. Crystalline also looks more translucent, and less private... Maybe the color contributes to this. My Pinnacle at 35 seemed so much darker then crystalline at 40.