All of the above^
Also had a 6 and am quite pleased with the many improvements as mentioned. Also the widget page on the left I find quite useful, although I guess that's an iOS 10 thing not a 7 thing. None-the less. Then there's force touch the 6 didn't have. Personally I haven't found this to be super useful but it's available as an option. Glad I upgraded. Traded my 6 for the 7 on a Verizon trade in special so a no brainer for me and only $20 out of pocket to satisfy their dumb upgrade fee. Love the battery life, as it is amazing that such a small battery can go all day with power to spare.