I used to get REALLY cold feet and think the MW80s are pretty good.
In icy conditions I prewarm them (left near radiator). They're good for most conditions. The longest run I had with them was 3 hours in the snow and my toes were numb by the end but that was about 2 1/2 hours longer than I'd manage without them.
So they could be even warmer. But they way they are makes them good for Autumn and Spring wet days so I get more use out of them than I thought I would.
I rode through all of last winter and only ever had water inside them once (got stuck in a deep muddy puddle and had to walk out) and they have'nt smelt great since 😳 I'm very reluctant to machine wash them like I do to my MP66W's etc.
Overall – 4.5 stars from me. Just make sure you try them on with your warm / thick socks (I'm a 43 usually but these needed a 45). If they do get wet inside try and dry them out asap with a fan or something.