I went on kind of a down grade lol....a roller coaster if you will.
I went from a iPhone 6> Galaxy Note 5> iPhone SE and then now to a iPhone 6s+. Right now it's a toss up between the SE and the Plus. I have since got rid of the iPhone 6 and Note 5.
Both the 6s+ and SE have pros and cons, but at this point I'm leaning towards the Plus for the awesome typing and huge, beautiful screen. It's more awkward to carry and handle, but I'm getting used to it.
I still have the SE setup and like looking at stuff on it as well. It's a powerful little device that's so easy to use one handed.