Hi,
I've been using iPhones from the iPhone 4 onwards.
My last one was the iPhone 6 Plus.
After watching their Keynote and having some hands on experience with the iPhone 7 variants I came to the conclusion Apple have come pretty much to a standstill with innovation. Ok losing the headphone jack isn't a deal breaker for me but to then replace it with a speaker grill with no speaker behind it is laughable !! iOS 10 isn't fully baked either.
I agree their warranty / customer support is good however if you do not want to outlay for Apple Care+ your stuck with 12 months warranty or an out of warranty mint refurbished purchase.
So on the 12th of this month I sold my iPhone 6 Plus and purchased a Samsung Galaxy s7 edge and even though the transition has been at times eventful

I'm patient enough to work my way through it, use forums like these and good old Google and YouTube.
The customisation on this thing is just off the chart !
And I haven't even looked properly at custom launchers yet like Nova.
Wireless Charging is a pleasure to use. No more fiddling with inserting a Charging cord. I now have a Samsung Wireless pad in my bedroom and a Samsung Charging stand in my living room.
This may sound like little things but having the choice to put the app icon pretty much where I want on my home screen is awesome.
For me the change has been a very positive one.
I opted to purchase the official Samsung Black Leather Case and its premium quality.