I was thinking about which screen protector to buy for my new iPhone 4. In the end it was a decision between the Zagg invisible shield screen protector and this one. I decided to go for this screen protector after seeing the video and i didnt want to wait 24 hours as required with the Zagg one. Installation was very fairly simple however i did mess up the front but luckily there were 2 other spare screen protectors. In the end i applied the front and back perfectly and i am very happy with the product and would defintely recommend