Is Maguiars protectant really good for interiors or does it just look good

I've used Meguiars products for years - I've used more expensive products, and I always end up coming back. This protectant was included in a gift pack I got for Christmas last year. It's fantastic on the outside and inside. It leaves a nice shine, without being too glossy and slippery like Armor All, etc... and best of all, when applied over wax smears on external textured black parts, it completely covers (removes?) the wax residue or any hard water stains from washing/waxing. The smell is pleasant enough to use on the interior too. Very impressed.  The "protection" is that it will put on a film which protects from humidity and sun damages!  Because it has the shine ingrediants, it also will protect from drying out and cracking vinyl!  I also recomend the High Shine Tire spray or the gel, that stuff is EXCELLENT as well, you won't regret it!