Had a drive of one of these recently they are pretty uninspiring! But if hes happy thats all that matters right
Think youll get a better repsonse to the question in the detailing area but ill kick things off
Depending on the condition of the car it may need a fulldetail, ive seen a few examples where new cars are delivered in a pretty terrible state and need some form of correction, if all is fine i guess it comes down to how often it will be maintained and to what level, obviously coatings only requiring one application witb waxes needed to be reapplied at different intervals
Your chosen combo should ensure easy maintenance through the winter months easily, i find 3 layers of jetseal still behaves well after 5 months last winter