I followed the directions, and really didn't spend a lot of time doing this-less than a half hour total. Easy to use, minor elbow grease, and a great finish.
My lenses were not too bad (first picture), but thought if they looked new it would help with the look of the car overall. The finished result made me happy (second picture). I have plenty of materials left to do other vehicles when needed in the future.
I would recommend highly. Have not tried any other products, but good reviews on this sold me. The biggest thing that sold me was the "finishing" liquid, the final step. This kit had it where a lot of other kits didn't...

LOVE THIS PRODUCT!!! I have tried the other brands. 3M, Meguires and Turtle Wax. They all 'fixed' the headlights for a couple months and the headlights went back to looking terrible. One evening, while looking online, I saw this company would come fix your headlights or you don't pay for the service guarantee. Unfortunately for me this company is across the country so I cannot hire them to fix my headlights. They do however make a kit available for you to fix your headlights. If they had this no pay guarantee confidence in their service, then I'd give their do-it-yourself product a try. I'm glad I did. It takes about 30 minutes for me to repair 2 headlights. I have fixed many sets for family and friends. Perfect results every time. THANK YOU FOR MAKING THIS PRODUCT AVAILABLE !!!