I've used Tech Shine on my vehicles, boats, trailers, motorcycles, etc., for more than 1 year. It is a superior product. Use it per the instructions and watch their video on-line. I even bought the gallon jug as I use it extensively. My friends are also impressed and several have invested in the product. I've done comparisons with Meguiars and prefer Tech Shine. The Meguiars works well but has a tendancy to leave a haze or film that needs to be buffed out occasionally. The spray method without the impingement of the Tech Shine sponge can leave the coating a bit uneven as well. I've done panel vs panel the Tech Shine seems to last a couple of washes longer. I've wiped down the Meguiars and still prefer Tech Shine.