I also use MTB shoes on both my MTB and road bike. Both are Shimano SPD pedals and work great in both applications. I like the ability to walk around with them. Came in handy when my MTB had a failure in the woods and I had a number of miles to walk out. Took the cleats off and they were just like sneakers. I'm not one of those guys that has a ton of excess money, so biking items that are good for both applications are fine by me. Some people are to concerned with "how they look" and need to be stylish and have road bike stuff for their road bikes and MTB stuff for their MTBs. To me that is BS. If it's functional and makes my riding experience comfortable on both bikes, it's for me!!!