He compares the low cost Walmart stuff to Saphir here.Check out The Elegant Oxford YouTube channel. The guy can put an an amazing shin on shoes using Saphir products. Akin to putting an incredible edge o a straight edge razor!
He does a great job. I can achieve the same shine he gets with Saphir using Kiwi. Not knocking Saphir products but I personally have not found a compelling reason to pay more.... or more correctly I'm avoiding developing yet another acquisition disorder.