While I have not been able to get my hands on an iPhone 7 Plus yet, but thankfully the glass on the 7 Plus is identical other than having a larger earpiece grill. Because of that I was able to try this screen protector on my 6s Plus. I have tested dozens of screen protectors and the Anker branded ones always fit well. It has a nice curved edge and like all tempered glass screen protectors it is easy to install. Included is a wet cloth, a dry cloth, alignment stickers, and directions to help with screen prep. The screen protector fits well and cover the entire flat portion of the screen. Overall it is a very nice screen protector that works well. I highly recommend it.
If you are interested in this protector it can be found here.