I live in SW Michigan, and I use them everyday for at least 3 months for anywhere from 2-5 miles to walk my dog. The problem is I need them because some, not all, of my neighbors are not good about keeping their sidewalks shoveled - so some sidewalks have a light dusting of snow, some are completely clear, and some are just massive lumpy blocks of ice. This is my second season with them, but I'm sure they are wearing down quicker since at least half of my walking is on concrete. However, I wouldn't be able to maintain my daily neighborhood walking habit without them, they are lifesavers and so worth it to me.