6+ to 6S+. Haven't really found it too cumbersome to put up with the size, which seems to be the most common complaint. That is, considering I wear skinny trousers and always carry the phone in my front pocket. And no, it hasn't bent 🙂 A minor inconvenience perhaps...but the pros outweigh this con for me. For one, the battery life alone wouldn't let me look past the Plus. I don't ever bother carrying the charging cable outside my house. And besides other oft-stated advantages including OIS and screen resolution, my eye-sight is lot screwed. I find it much easier using a large screen, even though I keep the font size to near minimum. But having the same font size on smaller screens makes it difficult...I know it is weird. But I've tried and that's what I felt.