I guess I am going to try to keep this thread going. I've been using the Jes for a few days now. I certainly can't say that it's already increased my size, but I can say that it is comfortable and I don't mind wearing it for hours. I have a Max Extender that I bought years ago and it's caused a lot of pain and no gain :(
This seems to be consistently stretching the whole penis and not just the tendon or ligament. So far so good.