Purchased these tires a few weeks ago, and immediately i can feel the different from my OEM tires (michelin pilot hx). Very quiet and perform great. Best tires i ever purchased and i recommend it any day.
Find this tyre quite noisy, and also can feel the vibration from the tyres.
the feeling is like you are driving on over inflated tyres .
i have checked the pressure and it is on the 230kps recommendation by manufacturer.
mite be tempted to release 10kps to see if it helps with the noise and ride.