I had some for a few months. Here's what I think:
The good:
-Light
-cool looking
-better in mud than most clipless
-secure once you are in
-lots of float
The Bad
-more fragile than most pedals-a good smack on a rock can bend them easily
-harder to get into than SPD style-no positive click to let you know, and harder to locate the "sweet spot" on the pedal
-bushings are a poor replacement for what should be a roller bearing (many pedals have this shortcoming)
-cleats are brass and wear out quickly compared to SPD style.
The Ugly
-only lasted me a few months before I smacked em on a rock and broke em.
The bottom line-I think egg beaters are OK, but there are better choices for me.