ok i switched from 6s 128 gigs to s7 32 gig (european version i have att in states). My experience
$3 to get idevices so i can see my ipad if i lose it. ill show you app link. you can buy an app that lets you listen to your itunes music. the little microusb to usb cable let me transfer contacts,wifi passwords, (apps from my samsung tablet) and stuff so thats easy! What'll be hard is just getting used to the interface. i got used to it in a week but sometimes youll remember! oh how do i do that and have to google that. The camera,google play stores,gallery are mostly the same and shouldnt be a problem! IF YOU HAVE GAMES like clash royale before switching go to transfer to device choose as old device and input code to the note7 and google play games to get your data! I had to do that! I would recommend it. I dont like the big size of the note7 but 6 gigs will be EXTREMELY FAST (i have 4 and its amazing and the 2 help with the 5.7 inch screen). I would definetely recommend the buy!