Similar to other reviewers here, during the installation of the protector the adhesive pulled away from the back side--resulting in a large (approximately 1" x 2") adhesive 'blotch' underneath the protector. It looked awful.
I went to the SGP web site ([...]) and submitted a complaint. "Hannah" courteously replied, apologized about the problem, and sent me a replacement--no questions asked. I later received an apology email from the marketing manager; he said the problem was due to a defective batch and that they are offering full refunds or free replacements.
The replacement arrived three days later--cross-country, no less. There were no adhesive problems with the replacement.
I love this protector! It prevents glare and fingerprints wonderfully.