Pros: easy install - everything lined up well, clear instructions.
Cons: despite having both a inner (screen side) and outer (finger side) plastic protector the actual glass screen came to me with something already on it. I ordered my surface pro 4 at the same time as the screen protector because I absolutely hate touching the screen before I start using the device. once I had everything I unwrapped it on a clean and clear surface, making sure to never touch the surface of my microsoft surface. I then took the sheets off of the Targus screen protector and applied it to my surface pro.
As I was working out the bubbles I noticed one bubble wouldn't budge, spent about 5 mins working on it and then finally gave up and fired up my surface pro. Once the screen was lit I could clearly see it wasn't a stubborn bubble but an actual object between the screen protector and the screen. I peeled back half the screen protector intending to use an alcohol wipe to clean it off. I quickly identified after much scrubbing that it wasn't coming off easily and it was not attached to my surface pro. I scrubbed the spot until my wipe was dry and I had not decreased the debris spot at all. finally I carefully used a knife to actually scrape the lump off. this obviously ruined the screen protector but it confirmed my suspicion that the object wasn't simply something that had fallen onto the screen, but probably something that had become lodged into the surface during manufacturing or packaging.
Either way my product was defective and I have no intentions of using Targus again for screen protectors.