I've been using SPD mountain-bike pedals on my road bikes for a long time, and have been wanting to move to a road-specific pedal. The question is, which? Look, Time RXS, Shimano SPD-SL?
Criteria are flotation, easy in and out, and being able to walk safely to the convenience store, and down a flight of marble steps carrying my bike.
I've heard good things from a friend about the Shimano SPD-SL. Asked her if she could walk OK with the cleat, and she said, yes, she could even drive in them.