OP, nobody has asked this so I will, why are you considering the 7 series? Why not an X or an 8?
As far as android to ios goes, I was an android user for years. I always rooted my phone and used custom OS's and basically did whatever I wanted with it. I don't miss android at all, yes it was fun but IOS does everything I want and need and it all works really well.
As far as hardware goes, I don't really know why anybody would buy a 7 now. It's basically 3 generations behind, maybe only 2 depending on how you look at things. New iphones will come out in october/november. I have been thinking I wanted to update my 7+ but I'll wait another 7 months or so and see what's next.
As far as android to ios goes, I was an android user for years. I always rooted my phone and used custom OS's and basically did whatever I wanted with it. I don't miss android at all, yes it was fun but IOS does everything I want and need and it all works really well.
As far as hardware goes, I don't really know why anybody would buy a 7 now. It's basically 3 generations behind, maybe only 2 depending on how you look at things. New iphones will come out in october/november. I have been thinking I wanted to update my 7+ but I'll wait another 7 months or so and see what's next.