Ten month update (yes, the previous should have said six month).
Still looking good and beading well. I've done some touch ups in areas which are subject to lots of exposure, like behind the wheels, and the horizontal surfaces like the trunk lid, but the flanks have been as I left them after the initial two-coat application.
That said, after washing the car, I was only planning to do some additional spot maintenance for insurance, but ended up applying a full single coat over the entire car. It was easy, and quick, with all of the advantages already outlined, so why not? Even if one didn't want to do the full two-coat process as suggested, more frequent refreshes are still a breeze.
These are only my subjective opinions, no formal testing. There are probably better products out there, and I'm sure there are worse, but this stuff is easy to obtain, easy to use, reasonably priced, and does the job. A keeper, as far as I'm concerned, and a genuine advance over the venerable options like a paste or liquid wax. The state of the art has advanced. (I've also seen the flip side, where that Meguiars UFF aerosol distinctly failed to live up to its claims).
When I get a new car, I might be tempted to explore, and try out the latest fad, or hot product on it, but for now, the status quo is quite good.