Zymol products put everything else to shame. They may be expensive but yield results superior to any other product out there. I know because I've tried most of them. The car wash and wheel cleaner foam an incredible amount which makes removing any dirt childs play. The wheel protectant that comes with the wheel cleaner left my wheels looking like new. The HD Cleanse is easy to use and leaves your paint as smooth as glass. The concours was the most expensive item, but well worth it. But, I've waxed my entire car about 7 times and have only used about 1/4" out of the jar. I calculate that the jar should be good for at least 12 full waxes. I've never seen water bead like this or paint so shiny. It lasts a little over a month, but I put a new coat on every month to keep the finish looking it's best. The detail wax works well on the wood trim inside cars, but I'm not sure that it does anything that the concours wouldn't. The field glaze is OK. Nothing great, but it does have wax in it so when you clean bird droppings off your car it leaves a fresh coat of wax. The screen clean kit works well on large plastic headlights and I've also used it on the gauges inside. It really works well on the gauges.