I made the switch to Windows Mobile, Lumia 1020 a couple of years ago. I was looking for something different and really did like the interface. Plus it had an amazing camera. I still prefer the Windows Mobile interface, but the the S6 is a much better phone and I finally have the apps I want. The phone itself is great, with amazing performance, screen and the camera is still pretty good. The app store is what really sets it apart though. All in all I am very happy I made the change back to Android and Samsung.
I take a lot of photos and the quality is 100% better then the ID phone which my has. She wishes she had the galaxy now!! Great product and when the s7 comes I will purchase it!!!
I upgraded my phone from the s5, some features were relocated and made it tough to figure out and some were deleted all together. I used the safe swap to move data and it worked very well.