let me tell you from learning the hard way. They will try to sell you "Simoniz" at the dealer. Dont do it. It is a very inflated price. You can buy your own sealant and apply it yourself.
personally-I enjoy the line of Adam's products. The best thing about company is they will make it right if you are not satisfied with a product. Like 110% guarantee. You can join the forum over there(ggogle Adam's polish forums)-I have never felt like I asked a stupid question, they are so nice and helpful.
Dylan@Adams is the best guy-he runs daily specials and answers a lot of technical questions. Also, Junkman has made many many videos on proper techniques and he takes the time to answer questions. I highly rec these guys. You cannot go wrong!!!!