I've just made the switch to a S7 Edge after many years with iOS (most recently a 5S) and Windows 8.1/10 Lumias (920/930).
I have to admit, I was reluctant and have always avoided Android like the plague.
It always seemed buggy and overly complex. Whenever work colleagues tried to demo their phone it would nearly always end in their embarrassment.
Faced with the choice of either another iPhone (which would offer me anything over the 5S I've got) or an Android device of some sorts, I opted for the S7 Edge.
It looks great and seems to be the best handset to go for right now (along with the non-Edge).
Humble pie moment, I'm pleasantly surprised. No buyers remorse.
Lovely hardware. Android (and the Samsung apps) are great.
Should have done it sooner really.