Problem with clipless is once you do it, its hard to go back. I constantly find putting on those god damn shoes when Im always wearing flip flops a pita...

But I get on the bike and the great connection is just priceless.
NateRod recently made the switch and I believe Vixtor did too, on SPD.

I love it, probably wont go back unless I get another, more aggressively oriented bike that I can take out when I feel the urge and I can swap my current ride into a more comfort oriented ride.