I can't speak to long term-I'll let you know how that works out. But once you have the oxidation removed, as Cam stated, it is just as easy to apply as advertised.
The stuff really works as advertised and Practical Sailor was impressed.
The last "miracle cure" I tried that actually did work was Rain-X and that was 20 years ago.(not on the boat)
I don't know that I can get the results with it that halekai gets with wax. but I do know that, in about a month or so, I'm going to go out and wash the boat and then spend under an hour with the Poli-glo and be done for the year. You pick 'em.