I nearly gave up on clipless because I'd only used the spds that came on my bike. I'm very happy with ATACs and I use them on all my bikes. The first time I ever came unclipped was last week, when I was flying over the handlebars of my mountain bike, though I suppose I could have rotated my feet inward about 20 degrees.

Very secure and mounds of float and durable in my experience - I haven't tried eggbeaters because I'm in the 220 range.