I had ordered 2 prior to this thread starting and I just received them this past weekend. I put one on and it went on pretty easy. The paper that comes with them says to go to the web site for instructions. The instructions are in the form of a video and they use some "Solution" to spray the shield prior to putting it on your phone, but they never say what the solution is made of. I e-mailed them and they said its simply a couple drops of non-moisturizing soap and tap water. Just take your time installing it and it will come out great.
After installing the shield, my phone actually looks new (its all shiny now
). I had some scratches near the Verizon logo from sliding the phone open and now you can't even see the scratch. The only gripe I have is the edges of the shield seem to pick up the lint from my pocket, but that seems to be getting better and less noticeable as the days go on.
I think it was definitely worth it for the $3-$4 I paid for shipping. (I thought it was a scam at first also, but said, what the heck)