I have been using Eggbeaters fr the last 2.5 yrs and had no issues, just recently opened them and regreased bearings, a simple 5 minute task, needed it after wet muddy Karoo 2 Coast.
I have never had any hassles getting my feet out of them in a hurry and they are comfortable for all day riding.
Also not had mud and sand stuck in them, I have seen many riders around me not get their feet out of SPDs or in, because of mud on cleats & pedals.
Eggbeaters are Gr8