About the tires, I'll start with the not-so-good things first. Soft rubbery compound and studs make for sloppy steering feel, so I run a higher tire pressure in order to offset this effect a little. Noise with any studded tire is always an issue. Because of the soft compound and studs these tires have a lowly Q (99 mph) speed rating, so it is not intended to be a winter performance tire of any sort. If you get just a little bit of snow a few times a year, this is not the tire for you.
Now with the great things about this tire and reasons why I like them so much and keep buying sets of them. The rubber compound and thread pattern give you absolutely incredible traction in snow and ice. Deep snow is handled with ease as the thread clears itself while rotating. The compound stays soft and pliable in the coldest temperatures and the sipes stick to ice securely. Add studs and this becomes the absolute best value for the money on the market if you need a tire to handle the toughest winter conditions. They also last a very long time if you take care of them and keep checking the pressure as you should. Buy these tires if you drive on snow and ice frequently at least 4 months a year. Look elsewhere if you need a performance winter tire that can handle occasional snow.