I live in the Midwest, we get snow and lots and lots of cold. I have always had issues keeping my hands and feet warm. I've solved the hand issue last year but my feet still continued to be cold. I purchased these boots after getting a recommendation from a guy I met in northern MN at a mountain bike race. I purchased a size larger given I'd be wearing a liner and wool sock.
I've ridding with these boots 250+ miles so far this winter, from temp in the single digits to the mid 20's. My feet have never been cold in these boots - they are remarkable. I have Crank Brothers egg beaters, the boots work great with them (with the required shim).
100% endorsing these boots!
Very happy with my purchase of the Wolvhammer. I ride throughout the snows of upstate NY (US) winters, where temps will often drop to 0 degrees F. My prior winter boots didn't hold the warmth, especially at the toes, so I would have to supplement with a heated insert. These boots are both warm and waterproof. Ordered a 1/2 size up from my normal foot size to accommodate a thicker sock and fit is excellent.