I saw a video of this product and it looked pretty good so I gave it a shot. It is your typical thin (liquid) detail spray. Goes on easy and wipes off clean. Pretty good shine. In the video, the product repeals water with amazing efficiency. I am here to report they're not kidding! I used it on my black '08 Tahoe after a wash job and then took the car on vacation from Houston to Bisbee, Az. Along the way we encoutered everything from frost to blowing dust to torrential rains. I washed the car while in Bisbee and couldn't believe the sheeting action. The trip home was mostly in typical Texas sloppy rains with about 3 solid hours of driving in hurricane grade downpours. The car didn't even look like it needed a post trip cleanup. I really poured the carwash concentrate into the job however, mostly because I wanted really clean undercarriage - wheels, tires and fenderliners. Here we go again, the water just sheets right off! I'm amazed! So I plan on seeing how well this stuff holds up to black paint duty in Houston. So far Meguire's is batting 1000! Now I'm also durability testing Collinite products on my other cars, but I care a great deal about them - they'll always have a proper wax on them, but the Tahoe, well he's expendible; I absolutely hate having to care for a vehicle that takes 3 times as long as the others to look good. If this Meguires Ultimate Quick Detailer stays beading water for any lenghth of time, he's seen his last wax job. I'll keep in touch on how durable it really is. Cheers!