In brief: Google Photos already offers a slew of features, and while it's always been able to recognize faces in pictures to help you manage them more easily, users have been asking for the ability to do the tagging manually. The company is now rolling an update so you can add in the faces missed by Google's algorithm.
You can think of the over 1 billion users as living proof of how good Google Photos is (it's also "free" for unlimited photo and video storage)






