I bought it realizing that a lot of people think anything by TW is crap. But as i said, for whatever reason, i get better results with the plain old TW than even with mguires, which for me worked like it was worth a nickel at most. So if this new stuff is better i can't see disliking it. longevity, well, no wax has it so WTF. I just don't wanna spend 2 days and $100 "sealing" my car. I'll bite the bullet and wax it 4-5 times a year.