I purchased this product after reading several reviews outlining the pros and cons of the product. Many of the reviews described how wonderful the screen protector was, and that it was everything it was promised to be. However, I have not had a positive experience and would like to outline for future purchasers my experience with this product.
First, it is advertised on Amazon very differently than the actual product. It is described as a "3 pack + 3 bonus back films," and this is very misleading. The actual product is a single screen protector that is made up of three separate layers that must be applied one on top the other, individually. For me, this was extremely frustrating, because I did not receive this impression from the description of the protector or from any of the reviews.
Second, the protector is difficult to apply to the phone. I read reviews from other individuals who purchased it, as well as the company itself, claiming that it fits the iPhone 4 EXACTLY. This was not my experience. I had a difficult time lining it up with my phone screen, and once I applied the protector, the edges of the phone were not protected. It was essentially a large air bubble, all around the edge of the phone. According to the package and the company's description, these "bubbles" should clear up by rubbing a credit card across it. No matter how many tried to run my credit card across the phone, the bubbles never disappeared and the edges began to curl upward. It was extremely obnoxious to try and deal with, and in my opinion defeated the purpose of buying the protector at all.
Finally, there was a filmy residue on the protector. It was sticky to run my finger across and left horrible smudge and smear marks. My phone looked better without the screen protector at all.
Overall, I was very frustrated with the product and not satisfied with my purchase. One thing I did notice from other negative reviewers was that they noticed a "rainbow" effect across the screen of the phone. While I had a lot of frustration from this product, the rainbow effect was not one of them. Despite the air bubbles, residue, and poor user ability, the portions of the protector that were attached correctly had a nice clarity and did not affect my impression or view of the screen at all. I sincerely hope that my review has been helpful to future customers interested in this product.