The more I drive on them, the more I hate them.
Me thinks these are for people who are addicted to adrenaline (sadly bridgestone already stole the idea for the summer tire), folks unfortunate enough to have poor sound insulation in their cars and locales where studs are illegal.
Aside from good acoustic comfort and better traction on clean pavement I am hard pressed to find any advantages over even mediocre nonuniformly studded tires with widely varying protrustion lenth of the studs. Even the best ones suck on glare ice even around about 5-7F (all water froze around her ;-)
Amen P.S. hello to the crowd driving on "performance" winter category aka "black winter" in eurospeak