I wanted something I could do myself, not spend a fortune on, and that was OK to let cure outside rather than inside a garage as many of the really top-line coatings require. I treated ours with Gyeon Can Coat at $55, plus their Gyeon Prep ($17). I coated the vehicle right after I bought it and the coating was still amazing one year later when I gave it another coat. I've never used anything before that even comes close to the performance. After one year the beading and resistance to bugs, etc. was still amazing. Just to keep the coating in absolutely top shape I also wash the vehicle a few times a year with the booster wash formula, Gyeon Bathe+ ($22), although it is not really necessary. Between those washes I usually use Optimum No Rinse Wash and Shine. I am not recommending Gyeon for any particular reason other than that was what I picked after reading a number of reviews. My biggest requirement was ease of application and the Can Coat fit the bill. There are now other reasonably decent coatings that are even easier, but not as durable. For example, take a look at Meguiar's Hybrid Ceramic Wax (G190526) that is usually available at WalMart and auto parts stores. It really leaves a pretty durable coating with very little effort. I used it on our Airstream trailer and could not be more pleased, given the ease of use balanced against durability. I have noticed similar other products appearing on the market as well; I think there is one from Griot's Garage now too.