Rocky mountain winters can be brutal (i.e. -40 windchills and back to back to back blizzards). Our house has a smaller front porch, but there are two stone steps to get up to the porch. They're already uneven to begin with, so any lick of ice makes them a decent hazard. These have managed to tough out quite the winter this year! There's only been a few days where they can't keep up with the snow accumulation, but it's much nicer to sweep of a top layer of snow than to chip away at a sheet of ice. We've had our other mats for a few years and they're still good!