I'm soooooo glad I bought these boots now that we've been pummeled by 21 inches of wet heavy snow.  These boots are perfect for heavy snow in subzero temps.  Just a warning though, these boots look BIG!  Understandably so because they're rated for -148.  I'm not sure how many people in the world are elite enough to ever test this assertion, but they will likely work for whatever cold temperatures I'll ever experience.  If you're into the new Ugg boot look, then they won't look comparatively that big but they are warm because they have a 1" foam liner inside them. They look a lot like snowboarding boots when you put them on. The liner makes it hard to tuck any normal pant cuffs inside them but if you're wearing long underwear with skipants then this works or you can roll your cuffs up and tuck them inside the cinch sleeve at the top.  I wear a 7.5 street shoe and ordered a size 8 which fits perfectly.  I am 5'4" and the boot comes up about mid-calf and it's about 14-15" tall from the ground.  The shoe part of it is 12" measuring from the heel to the toe.