Not a lot has been discussed about this feature. I think it's a great feature. A week or so ago I was having a conversation with someone on here about how I want a bigger screen to make the content bigger where as he wanted a bigger screen to have more content. When Apple brought out the 5 they made it so that there was more content instead of bigger content. Back then I think it was the right decision because the iPhones back then showed little content, especially for example in the messages app when the keyboard was visible. Anyway it's clear now that those of us who want a bigger screen do so for different reasons, some want it for more content, and others like me want it for the same amount of content but bigger. To me it's great that this time Apple isn't deciding for us but instead is allowing the user to decide.