I'm about to take the plunge with them being on sale at REI.
I've been using the airwalk version ($30 from target) with powergrips for years. Love them. But I"ve got clipless pedals on the commuter right now and figure why not. Still a lot more money than I want to spend, but if they work well then it's money well spent on my commute which gets pretty toasty. I like being able to douse the legs and feet with water. Or when I'm on the mountain bike, just hop into the stream.