I put these on my track bike after switching from Pilot Power 2ct tires. I would say they perform better off of feel, as I did not get lap times to compare the two at the same track.
I was able to run 1:53-54s at CMP without spinning the rear up much or having it break loose on me. It was a colder day or I would say that they could confidently get closer to the 1:51 mark.
Durability is what you would expect, having them mounted on a liter bike. Feedback was good. I could feel what the tire was doing pretty much the whole time. They also were up to temp very quickly.