Problem with using iMessage is that once you message other people with an iPhone and then switch over to Android, you'll run into problems. Mostly for me it was people not seeing my messages though I could see theirs. AT&T helped with that and within a few days things got back to normal. I really couldn't distinguish between iMessage and the Note 5 app. Looks and works in a very similar manner. BTW, I had no trouble selling my 6 Plus after owning it for just 7 months. Great resale value and don't miss it at all.