Tutorial advice

I know that there are a lot of free tutorials, but I found some paid tutorials that look kind of good and I may want to try them out. I was wondering if anybody has taken these courses before and can tell me which one is the best or which one is worth the money, or if there are better, free alternatives

CG masters car tutorial: https://cgmasters.net/training-courses/master-car-creation-in-blender/

Hard Surface modeling from Creative Shrimp: https://blendermarket.com/products/hard-surface-modeling-in-blender

CG Cookie subscription: https://cgcookie.com/

Thanks!