I bought two tripods manfrotto in a week, one to 80 (with the Advanced Compact 3D kneecap) and BEFREE costing more than twice ... I was expecting to have something really great was because the Advanced Compact already wonders ... And ben NO !! Frankly their supposedly great Italian design is nothing, the kneecap is less convenient than the 3D ball that I have on one that costs half as much, feet are more stable than the other either, and frankly notches system to manage the angle of the foot leaves much to be desired that the clasps postures. I immediately returns is largely over priced !!! Very disappointed in this product, and yet I have watched tutorials, feedbacks, presentation videos etc ... I do not understand the popularity of this tripod!