Gotta admit, I'm extremely interested in they're "View" and "Antifog" products, while I don't mind the rest of the car having a little bit of dirt and grime once in awhile, I absolutely insist on my windshield being crystal clear lol.
I've always liked Aquapel, I've gotten over a year of beading on both vehicles with it. Kind of a pain to apply though but makes your glass slick as hell.
Washed the car a couple weeks ago and used opti seal as a drying aid and I'm still shocked at how clean my car looks after a whole lot of raining here on Long Island. I've never seen anything like it before.