Yep, just like everything else, it's best to look closer at real world reviews than the marketing BS. The marketing BS is about as thick as it comes with these types of products. The money making opportunities don't end after the coating is applied either. Most coatings come with a set of maintenance rules and guidelines. Yep, you guessed it, most of these companies also want to sell you more products so you can "properly maintain" or "refresh" the surface. Then, in 3 years or so, they'll want you back to do it again.
While these coatings can be beneficial by adding a layer of protection, they are still expensive, semi-permanent, and won't protect against deeper scratches and poor maintenance in general.
While these coatings can be beneficial by adding a layer of protection, they are still expensive, semi-permanent, and won't protect against deeper scratches and poor maintenance in general.