Hows the noise levels with the pilot4?
Noise levels are absolutely fine for me, to be honest I can't tell the difference noise wise between these and the Goodyears. Not driven them in the wet yet but after a few more dry miles I am impressed with them. Steering response is very much improved from the Goodyear, which I expected to be honest from knowing that the Goodyears run a softer sidewall. However the Michelins are more than a match in terms of comfort too. Difficult to compare grip levels obviously, going from a worn tyre to a brand new one, but the PS4s have a huge amount of cornering grip. Very strong and stable under hard braking too. Not tested their initial grip off the line yet but am sure they will impress.
Next thing to test is obviously wet weather performance. The Goodyears are a great tyre and I wouldn't hesitate to recommend them or buy them again. They are great value, however, if funds allow, I think the PS4 is a small step up in every area so far.