Car finishing product

I recently bought a new Camry and the dealer offered a finish application called "Signature Finish" by Alexico Corp., headquarterd in Overland Park, KS. This finish is supposed to protect the exterior finish and interior such as carpet, leather and vinyl.

My question is if anyone has had any experience with this product and their overall opinion of it. Also how much they were charged if you don't mind disclosing the price.