I've had it for 2 years - still not finished - I use it every three to four months. The result is flawless - note that the product is a protective for the bodywork - it does not cover scratches - besides, I did NOT buy it for scratches.
Never EVER wash your cars in automatic car washes because it will ruin your whole bodywork. ONLY by hand.
I highly recommend the product, it protects against both the sun and the acidic rainwater - the rain doesn't touch the bodywork - it's visible to the naked eye when it rains. In any case, the car needs a closed parking or a carport.

It does what it promises. It is very good for a second step after a thick polish, either from the same line or even better the Meguiar's Ultimate Compound. Application with a polisher.
I don't know how much sense it makes to buy it (although the product and line are good) because the corresponding ultimates from the same company are better for almost the same price.

Decent job, it only removes shadows and not scratches. Although I bought all three steps, unfortunately it doesn't remove spiderwebs, not even with my hand, nor with a cloth