To replace the front screen on an iPhone 4S? I ordered the kit for it, with the tools, found a 20 minute long how to video, and I've done stuff like this with tiny screws etc before so that's not making me nervous. I just want to know if anyone here has done it, and what is the hardest part I have to worry about? One more thing, how is it that I can order a screen from a company for 80$, is it still going to be the same quality as my original screen? I just don't see how it could be for some reason it seems impossible.