I have used their washing and waxing product on both of my cars and the motorhome with outstanding results. It is easy to use and leaves all of my vehicles very shiny. I have not used the degreaser that the article recommends, but would expect the same high quality with that product.
The company is very customer friendly. As an example: I use their double sided mop to clean the motorhome. A short while ago I received an email from them that the mop heads did not meet their quality standards. They sent four new mop heads free of charge. I was impressed. Good luck with your project.