Hi Renton, I must admit I was a bit apprehensive regarding the claims being made on the TV about the product, so bought some to try it. That was over 12 months ago. The finish I get is great and as I said before, there is not a mark on the paintwork, even in the sun. My car is mica black so would readily show up any defect. The protection is, dare I say it, fantastic and builds up with more applications. Of all the polishes and waxes I have used in the past this is definitely the best. It's so easy to use as well. The car always looks immaculate and needs to because of the colour. I'm about to finish my 5th bottle of the stuff with a 6th bottle ready and waiting in the garage. Believe me, I wouldn't waste my money if it wasn't any good. My son, who is very fussy, has a black Citroen C5 and he uses it as well, so two satisfied customers.