I'm trying SPD-PD A520 on friends road bike with Lake MTB shoe, I like it so far, shoe is walkable and looks cool. most of my concerns are the release from the pedal but so far so good, I guess it is a mental thinking process, that I have to remind myself that I'm locked in. I was wondering how is other brands. My local LBS is recommending the SPD one of the reasons is that I told them I like to able to walk with the shoe for a block.