I have the PowerGrips "deluxe" package which includes some nice PowerGrips branded pedals and the straps; I love 'em. I run clipless on my geared bike, and yeah, there's no comparison. But I use my fixed-gear bike for messing around and having fun and I don't want to change shoes to do so, and my feet never felt comfortable in regular clips. The PowerGrips are perfect for me and in nearly two years of using them the only problem I had was that I accidentally stripped the bolt that holds the strap in place. I contacted PowerGrips themselves and they sent me a pack of five bolts at no charge.

Works for me!