hi silvernismo,i have used supagard going back a few years, it consists of a special polish sealer contained in a sponge applicator, as with most of the paint protectors its all down to the individual applying it to your vehicle, if a valet bay is busy and the operator cant be bothered it will be just applied to the larger panels and not much care taken, but it if time and care is taken it is well worth applying especially to a new car.as to the question of is it worth it? yes it is defianately worth applying, it will seal and protect the paintwork, they contain a special formula that bonds to the cars paintwork to the degree that if a bodyshop tries to paint a panel without preparing properly the new paint will react due to the sealant.if you looked at the cars paintwork under a microscope it would look like craters and the paint sealant has the effect of smoothing the surface out to prevent anything adhering to it, dealers often sell the product for anything from 299.00 to well over 500.00, which to me is too much.bearing in mind most of the products dealers use will cost them well under 100.00 to buy, and in many cases a lot less when they buy in bulk.we apply a product to the new Jaguars we sell for on average 299.00, on a car costing anything upwards of 30k its probably not a fortune to the buyers, and i know that my guys apply the products correctly and we pay them a 10.00 bonus for everyone they apply to keep them motivated enough to care about applying it.but i would recommend you buy the product yourself and do the job as soon as you buy your new car, there is no great skill in applying it, basically ensure the paint is perfectly smooth, clay bar it first, apply a very thin polish first to remove any residue, and then apply the sealant doing a panel at a time depending on which one you use. one of the best i have used is Autosmarts Silver Seal, it is esay to apply and gives a very good seal, interior protection is often skipped by most valeters often just giving the fabrics a quick spray, you need to ensure it has a good coverage to protect from spills, i have often done demos by spraying the fabric protection on paper towels soaking them then drying them out and then running water over it on both the protected part and the non protected part, customers are impressed.you can always tell when a car has been protected with a sealer correctly if you machine polish it years after, it will always polish back up very easy.and if a salesman tells you, you wont have to polish your car ever again, rubbish, the sealer will protect the paintwork to a degree, but if you never polish it the sealer is the only thing protectin the car, the more polish you apply the better the car will survive the elements, use a good hard wax like Autoglym HD polish, easy to apply and gives a superb finish.if you need anymore info or advise please ask, happy to help anyone.