I was pretty happy with these tires. I previously ran the P Zero Nero M+S version, and I think I liked them better. I would consider getting either of these tires again. The M+S lasted a bit longer. Handling / wet / snow traction was not noticeably different. Both good tires.
I refrain from spinning tires as much as I can. A little chirp hear and there. Cornering not-that close to the limit. With that said I would have expected the tires to last a bit longer. Rears are nearly bald at 15,000 miles. Fronts could go another another spring-summer-fall. To the tires defense on lasting, my commuting time is virtually non existent in the car. I was self employed for 1 year ( working from home ) and the following year involved all but 1 mile/day was train/bus. So almost all my miles were leisure and often allowed a bit of fun being unhindered by typical traffic peaks.
I would lean towards these tires again, if I was looking for an all season solution. I have just moved to running dedicated snow tires in winter. When spring hits I will probably go with a more summer-performance oriented tire rather than another all season.