After reading the initial product review by Mike Phillips and so many subsequent positive reviews, I simply needed to try Meguiars D166 for my self. I was absolutely awestruck at how fast and effective it was. My first test was on my 2007 Tundra that has seen the last few summers not in the garage and the paint was looking very dull with little gloss. I was concerned that the appearance might actually have been the early stages of clearcoat failure due to the intense desert sun and heat that we have where I live. To my amazement, after a thorough wash and decontamination, I used the D166 with a Flex 3401 and Lake Country Force Hybrid white polishing pads and six section passes. The hood looked like new and was completely free of swirls! There were a few long scratches from an argument with a thorny bush along side the driveway that were also removed,which surprised me because I figured that I'd need to drop down to at least M205 or M105.
The roof was a little more sun-baked and super dull so I switched to the orange Force Hybrid cutting pad. Again to my surprise, it finished out as nice as the hood did and I didn't need to go back over with the white polishing pad. If the is any micro marring, I can't see it, although the charcoal silver color does tend to make swirls less visible to start with.
After such great results, I did my wife's 2015 Accord with the same setup and had equally impressive results. Both vehicles are daily drivers and now shine like new. Since the sun and the constant blowing sand dust mean daily light wipes, I'm going to cheat a little and put Sonax Polymer Net Shield on the horizontal surfaces for added protection.
Although I'm simply an enthusiast and not a pro, the D166 made my vehicles look like a pro worked on them. I never expected a product that is so close to a true one step buffing product to really work, but I'm totally sold. Thanks to all who documented their experiences with the D166, as it was a big help in my decision to invest the time to try it.