Yea, the orage peel thing does exist. But wasnt really noticable to me much. It is because the Zagg film is kind of rubbery and thicker as aposed to the cheaper ones are just super thin strips of plastic film.
In contrast. My wife and I got our iPhones 3g phones at the same time about a month after they came out. I put a zag on mine, and she got the cheapie 3 pack ones. Yea, I noticed the orange peel effect, but it wasnt a big deal. My wifes cheapie protector started peeling about 3 weeks in. After the forth week it looked like crap. It was peeled, wrinkled, and had dust and crap trapped under it. My zag was fine. She put on the second one and it lasted maybe six weeks, then the third, that one lasted about another 6 weeks until you could bairly see thru it. She peeled it off and didnt use a protector, a few months later one of her keys put a hefty scratch on her screen
About a year after I had my first zagg on, I broke a bolt off while working on my car. I stuffed the boken bolt in my pocket (forgetting my phone was in there). When I got to the hardware store, I took the bolt out and relized my phone was in there next to this jagged piece of metal! I took the phone out and the screen protector was scratched to HELL! I was really worrried, but i got home, peeled the protector off, and the screen was as good as new. I Put another zagg on, a year later, I buy my captivate, and my trusty old 3g still has the zagg on it looking as good as it ever did. I just put a zagg on my Captivate. I hope this one lasts as long as my old ones.
Sorry for such a long story, but for a lot of the crap the zagg ones get.. In many cases it people who dont put them on propperly. It does take some patience and skill, like tinting a window, but smaller. Also, once its on, you need to let the protecor settle overnight before you go about slidding it into your pocket, or holster or w/e. I have never tried the full body ones, but been very happy with the screen protectors I have used for the last 2+ years!