I live in Montréal, and walk outside in temperatures up to -40°C, or colder. These boots have been among the warmest I've ever owned. What's more, they're extremely durable. I usually walk a pair of winter boots into the ground after a single season. After an entire winter with these, they are still going strong, and look like they have many more years in them! Super comfortable, and clearly made to last.
I actually wore them only once. I previously had couple of your shoes, which I really loved, but this model was too crude for me. I haven't felt comfortable in it.