I don't think I could justify winter cycling shoes for my commute. Since I ride long distances all winter recreationally, I have two pairs of winter shoes. I really hate cold feet, and neoprene booties weren't hacking it. My warmest shoes are the 45nrth Wulvhammer, which are expensive, but very warm, rated down to zero Fahrenheit. I have intermediate warmth shoes which are lighter weight, and they have done fine down into the '20s.