Running the Michelin Pilot Sport A/S 4s for the Arachnids since Dec. I like them a lot. Not as sticky as the summers (of course) but not much drop off in handling and grip. Much, much better cold and snow/slush performance, as expected.
Two things to note are that fronts are OEM size, but the rears are 295/35/21 instead of 30 profile, and no foam inside the tire. I have noticed no rub or any suspension/braking issues. Speedo variation seems minimal/non-existent. Noise might be slightly higher with no foam, but I hardly notice now. I may keep them on year round.