Here is a quick video I shot showing the beading @ just after 6 months. This was before washing and the truck hadn't been washed in a couple weeks.
6 months CQuartz update - YouTube
Here are some beading pics...notice how nicely the trim is still beading as well.
All clean!
Overall, I'm thoroughly impressed with this coating. As I mentioned previously, washing with degreaser didn't phase it at all. This is especially nice on a daily driven vehicle that does not get washed too often...instead of having to scrub a large build-up of dirt, you can let a stronger cleaner do the work which results in less chance of marring. Through all the love bugs, APC washes, pressure washer cleanings, and weeks at a time without a wash, it still beads like you see in the pictures.
On any of my previous vehicles, which were always garage-kept, I never saw more than ~3 months even from the most durable sealants and waxes. And even then, after that 3 months the paint would need clay pretty badly. My truck still does not need to be clayed and it sits outside 24/7. I've had little rust spots develop on the roof and hood where junk falls from the tree in front of my house, and they just wash right off.
Next, my mother's Camry needs some TLC. Expect an Opti Coat 2.0 6 month update soon!