I have a lot faith in this tire. My first track day was on this tire. I had maybe 2k miles previous road time on the same set before I had the track day and they still had great grip. I would estimate the life time in the medium range. There are videos available on-line you can search for that will explain the science/technology used to create this tire. Material is easy to understand and common sense. Some will say this tire rides slower than other brands/models but I would say thats just confidence issues that person was having when trying something new. I personally like the tread patteren for that "what if" situation when sand or other small debris some how become a problem.