I've had a Iphone 4s, 6s as well, both got hot when I charged them or used them heavily, my S4 was a great phone and it's probably the one I should have stuck with instead of going bigger like the Note 4 and then I got the Note 5 and then the Note 7 and well, things got crazy. Note 7 is a fantastic freaking phone, without a doubt, but the issues with the blowing up, it causes stress and anxiety with people, it's a safety thing. I also don't want to lose my memories on my phone, my brother sends me videos and pictures of my little nephew, I cherish those and now I have to quickly throw them on my google drive and that's a pain in the ass too because I have to make sure it doesn't kill my data.
I could give the phone back, then just go back to an Iphone (I have had an S3, S4, then I had an Iphone 4s, Iphone 6, Note 4, 5, 7 the last few years), but with the headphone jack thing, not a fan, I am not fully on board with bluetooth headphones, just another thing to charge that is annoying, imo.
I also like my stylus and I don't want to have to buy an extra one, nor do I want to go back to the Note 5 with the lack of external SD.
It kind of sucks that this happened, but if the new Note that are being replaced withe faulty ones are fine, I'll stick with Samsung. Iphone can't magically give you a headphone jack.