Let me start off buy saying I bought my first car, as such, it means a lot to me to make sure my car is completely taken care of and beautiful on the outside as it is on the inside. I've spend quite a bit of money on car cleaning products, and I've also tested quite a few. I love the entire line of turtle was products, and the zip was car wash is no exception. It is very easy to use. I simply pour it into a bucket of water and its ready to go. It suds easily, as I have the issue of car washes not sudsing the appropriate amount needed. The formula isn't harsh smelling either, as I have an issue with car wash formulas that smell as if they have been over ridden with chemicals. It is actually pleasant. I wash my car, then I rinse. The formula rinses extremely clean and with no residue. It leaves my car extremely clean and streak free. I would highly recommend this product to anyone who wants a beautifully clean car.