I only just got the mat, so I can't tell you it's durability but it seems solidly built. Being an extra long and wide mat and being made of rubber it's a little heavier than the PVC mats. That said, I like that when I eventually toss it out, it will decompose not be a bunch of plastic bits that will never degrade.Sticky? yes, both sides, and until my hands get really wet from sweat I do fine.Thick? At a 1/4th inch it's as thick as they sell them. I do use a towel for my knees in some poses but then so does most of the class.Long & wide enough? Yes I'm 6'1" and it's nice to overhang both ends of the mat.The extra size of the mat is well worth it if you are tall.Expensive? Yeah, it's probably one of the most high dollar mats out there, but if you amortize it over the life of the mat, and a lifetime of yoga sessions, it's cheap compared to the gym membership, or even the gas to drive to the gym.