You might try a search in the archives. That is a topic that has been discussed more than a few times. (You beat me to it CBM)

I have set up plenty of them for other people but I don' t personally use one.

My opinion is that its a fine rest as long as you don' t mind a slight loss in arrow speed and you realize that you will have to refletch more often. Its a simple design that is durable and easy to adjust...

Good Luck