I got a package of crystal clears just before my phone arrived. I'm a complete noob at protective films, so I f'ed both of them up. I kept getting confused about which piece was the actual film, so naturally, I got both of them covered in dust. In the meantime, I got the films from the VZW store. They come in packages of 3, and they're super easy to put on, and they're not nearly as finicky about dust. However, you lose a bit of screen quality -- they're not as clear, and maybe don't allow for as much touch responsiveness. I don't mind how they look, but I'm sure there are people out there who would think they look heinous. I've ordered a 2nd package of crystal clears, and I'm determined to put them on correctly. Hopefully, the screen protection I have now won't allow for much dust to accumulate, and it will be much easier.
ETA: I'm not so much concerned with scratches as I am fingerprints. I hate nasty greasy fingerprints on my screen. The protectors from VZW don't allow a lot of that, so I'm satisfied with them. I'd just like to have a little more clarity, which is why I'd like to use crystal clears.