Works so much better than any other carpet cleaning formula I have used before. Where I live, it's very hard to get name brand products. It's a minimum of a 90 mile drive to get to a city that's big enough to have more than one or two stores. I am unable to get the Pro Max cleaner in my little town and I don't get to a larger town very often. I don't like paying for shipping so I try to wait until I get to town to buy it. Therefore, I buy what I can in my town and none of it works near as good as the Pro Max. It seems to loosen the ground in dirt better than other cleaners and really makes my 20+ year old carpet look like nearly brand new. It seems that as good as it is, I will break down and pay the shipping to make sure I have something that really does clean the carpet. It really is worth the extra money!