Have the same Renthal in 40. It will NOT last as long as stock steel by far. Mine is already showing wear after 800 miles. I expect it to last around 3-4000 miles if the wear rate continues. I heard AFAM HA alloy sprockets is supposed to last longer.
Also have the same front sprocket in 16. Condition is good after about 7500 miles. I expect it to last at least a few thousand more. Stay with steel in front.
The chain is very good!