i have been using iphone 7 for 6 months and i am very pleased. but I do not think to update any more because something is confusing with the update. Yes, I know it's good to update for security, but the phone is a little old and with newer phones the operating system goes smoother. So my advice is to keep up-to-date. iOS 14 is sure to bring a lot of new things, but it will slow down older phones in my opinion. Each version is made for the new model, which also comes out.