I love these things. I've got them on my commuting bike and my Xtracycle, and they're a great alternative to clipless pedals, which scare me in traffic.

The mini toe clips are very easy to get in and out of, and are especially good when it's raining because they keep you from slipping off the pedals. You don't have to press your toes into them, so there's no numbness or anything.

The only problem I've found is that my sneakers and my big winter boots are a bit too tall to fit in them comfortably, but they still work.