It's very subjective. I'm fairly new to clipping in and got MTB shoes and a 2 sided MTB pedals (Shimano M530) which I love. I use them for my road bike as they are very easy to get in and out of. The shoes I have (Pearl Izumi X-Alp Drift II Mountain Bike Shoes ) look more like sneakers and are wide and clunky but they are very comfortable and I use them on my road bike and for spin class. I'm not a racer nor do I ride as often as I'd like, but the shoe/pedal combo I have work well for me.