I find it good entertainment when stuck at home. He claims to be fully independent and is not sponsored by any product. If you watch his other videos he often doesn't just compare products, but tests goofy ideas that people suggest, so I tend to believe he is independent and is really viewer-driven.
He has a ton of videos that test different aspects of products. He also tested electrolysis against rust remover, and it came out pretty decent.
This time he tests penetrating oils as rust prevention. Some do well and some don't. A few don't claim to protect against rust, but some of the ones that do, actually don't do well. Kroil and PB Blaster don't do so good. I guess I'll stick to my Liquid Wrench.