I high build primed mine, flatted it all down, colour it and then 2k lacquered it. That was 3 years ago,. Aerosol looks good while its wet, but doesn't hold up to any uv Rays. Guess that's the Beauty of being a paint sprayer for the last 15 years.
Platidip is quite good to be fair. More of a rubbery finish to it, less chance of chipping as above.