mw80's do the job ok, stop my toes going numb but can still get frozen and whilst waterproof they can let water in through the foot opening fastening area, fairly common problem with many boots.
They also make my right knee ache more compared to my specialized shoes but thats just me and shimano shoes, slightly heavy and you will also need to size up!they are too warm for spring summer..
They are slightly tricky to put on than other boots too.
Last year they were a revelation to me but this year if i was buying i'd want better (i'm staying with these though as they still in good nick and work ok)
I would give them 7/10, they do nothing badly but also could be improved on, best i tried yet though.
oddly i still like using my spesh bg shoes in winter but with overshoes on, it works too and cheaper..