I had purchased a pair of these on closeout many years ago.
Throughout this time, I have used them snowmobiling, snowshoeing, sledding with my children in the yard, and many a time struggling to keep up with the falling snow :)

They are very warm boots, especially when paired with wool socks.
I've worn them comfortably down to minus 15 F in northern vermont as I zipped along the trails averaging 40mph.

To be fair I too have had an issue with an eyelet breaking off, but as there are so many there I simply retied it without a problem.
For that reason alone I have to take the rating down a notch.
Otherwise I am very satisfied with the product, and many others have as well, when they note them on my feet and exclaim 'Where did you get those?!'

The leather has finally given out on me this year, after our record setting 29 inch snowfall, where the foot bend meets the rubber side, and I will need to acquire a replacement.
Needless to say I have already decided to get the same pair.