I have had this rope for 7 months now and I absolutely love it. I climb between three and four times a week with this rope; mostly on sport routes but also on a few top rope routes. The sheath is incredibly durable. It is only now just starting to become fuzzy. Additionally, it is super supple and easy to tie knots on. I have owned many different ropes in the past from brands such as Mammut, Petzl, and Beal and the Energy 9.5 is hands down my favorite rope for sport climbing.