I've been using the 7+ for two weeks now, and it is a large part of my decision to get rid of my Olympus four thirds gear, which I bought for it's portability and my desire to use a decent IQ camera on my long bicycle touring trips. The iPhone 7+ is good enough for me, its utility just simply blew me away, that I just don't think I need to drag around my Oly gear any more.
28 rather than about the 32mm equivalent focal length with the 1x makes a nice difference (though I really wish they will move to a 24 equivalent lens later) and the 56 combo is perfect. The portrait mode is also something that is "good enough" for my travel photos.
But more than anything I think that this is simply the first step towards a new future, similar to the one that Oscar Barnack started, oh so long ago. History tells us that convenience always seems to win over absolute image quality. The iPhone 7+ is the new embodiment of that ideal, in a phone. The "landscape" will never be the same.
Only the noise at low light is something not ready for "prime time".