Coatings
1. Great Self Cleaning Abilities: Our cars see rain and often get rained on in the morning and then sit outside in the sun in the afternoon; don’t like waterspots. I like clean cars but don’t like cleaning cars. And with an affinity for black cars, need all the help I can get.
2. Durability and resistance to environmental contamination like water spots and bird bombs. Don’t wanna have to worry about running home and immediately dealing with removing things that would otherwise etch bare (or sealant or wax covered) paint. Like hard water spots did to our Corvette during the sealant years. Also has to last cuz I don’t wanna be hauling out compounds and polishes every Spring, given reasonable maintenance. Yes, the 2nd year I'll likely be living with some light scratches and marring perhaps but in my world, laziness sometimes trumps consistent perfection. And 2 years, 40k miles is all I expect (or want) from a coating.
3. Appearance: Well, stuff has to look good. Has to accentuate body lines, curves and hard edges. It needs to make me stop and admire it when walking towards it, walking away from it or catching a glance in the garage when I take out the garbage. I can choose various complimentary products to alter the look a bit should the mood strike me and still maintain decent self-cleaning characteristics.
I might make an exception for Polish Angel Master Sealant though...never seen an LSP that looks so luscious.