Winter and Cyclocross tyres / tires

I'm waiting on a marathon winter to arrive in a week or two I hope. Had to skip work to make an emergency trip to the bike shop and pick up some offroad kenda tyres, which improved my grip no end. I'll be interested how the winters perform on snow as I have heard mixed reviews.

My boss loves them. They dont have very aggresive tread, as the are designed for hard packed snow and ice (ie. what you find on roads). But this also means they offer a nicer ride then most studded tyres. Yet they still have a large number of, well placed, quality carbide tipped studds.

In deep softer snow, its the tread that gives traction, not the studds. Which is why I went with 'Nordic spikes'. But they have a pretty poor ride on dry roads.