Low noise.
Low rolling resistance.
Durable.
I've had those tires about 4 years and driven atleast 10000 miles with them, and tires aren't even halfway there. (Using two separate sets of tires, winter and summer)
I just got Landsail Rapid Dragon to my other car and im not so impressed with those. I think Qirin 990 is a better model, but they might be hard to find with a good pricetag.

