Time ATAC; never unclipped by accident, only one time fell over clipped in, when a riding buddy cut a short corner RIGHT NEXT TO ME and fell ON ME.

Having "a bad experience" with clipless pedals is not rare -- for that matter, neither is going back to platforms after that. My daughter did it, too.

I prefer them because I can also pull UP as well as push down on the pedals (the "360 power application" some people tout is crap, been proven), and the feedback I get by being clipped in is INCREDIBLE!