I don't agree with those who don't like riding clipless in urban areas, BUT (big caveat) I have been riding clipless for well over a decade and would feel naked without them. My feet would flying everywhere! They're as natural to me as bread and butter. But I probably wouldn't START with them in an urban area b/c there is a lot of stopping and starting. It would be a challenging way to learn clipless, and scary.

With mine (Eggbeater Candies), I can pedal with the second foot out of the clip if needed and a lot of stops are anticipated. But I always keep my first foot clipped in. Helps give leverage for all those starts!