Personally, I think the size of the 6 is perfect. However , after having the 6 for a good while, I ended up exchanging it for a plus. For the time being I don't have a MacBook Pro anymore, and I figured if I got a 6 plus then I wouldn't need to buy an iPhone and iPad. There are still benefits of owning a plus like better battery life, higher res screen, better camera etc. I still miss the size of my 6 but I think after a few weeks I'll get used to the size of the plus. I think if you think of it as a mini mini iPad and less like a giant iPhone then it might seem slightly less intimidating. But after owning both phones, I'd say that the 6 will probably be the one most people will end up going with.