I week and a half before the iPhone 7 was announced my iPhone 4S froze and would not work. I headed for the Verizon Store and my phone was dead on arrival. I chose to buy iPhone 6S plus and it has been a workhorse. I enjoy the speed, camera, and the battery life.
I discover new applications each day to employ in my business.
The only con I have found would be the charging connection is near impossible to plug in with any type of case on the iPhone 6S plus.
It is my best business appliance.