I have a 15 with 24k miles and have had no issues with anything. Gas mileage average is about 27 overall, but our highway speed limits are 75 here. I have had several nissans with a cvt and only had a problem with one, but warranty took care of it. BUt that was one of the first years they came out with it (08 I think). The cvt has improved alot both in reliablity and drivabilty.