I run eggbeaters, when I ran SPDs on my Forte Campus dual sided pedals I noticed it'd sometimes pop-out on my older worn cleats, but on my eggbeaters I've only ever unclipped when rolling an ankle improperly when skidding, and usually always on my forward foot, so didn't cause me so much of a problem. My Cannondale Roam shoes have recessed cleats and don't seem to wear much from my walking around, but on my Diadora Bike Patrol shoes my newer cleats are already worn more than my other cleats from walking about in them just this summer.

As for the hot spot on platform-less pedals, I've never felt it but maybe my shoes have a hard enough sole - longest ride to date is 116 miles and that was without any foot pain.

edit: Actually I have done multiple long distance rides on my road bike with eggbeaters without ever feeling any issue.