I'm 6'4" with big hands and I hated the 7+. For the life of me I could not manage one-handed use with it no matter what. Got the 7 and I'm so glad I did. Love the size.
Having said that, if apple manages to shave some of the top and bottom bezels in the next Plus I'd consider it.
Bout the same as me, though I've no problem with its size. I can comfortably wrap my hand round the phone so that my fingers touch and the only part of the screen I find a slight stretch is the upper right corner (holding in left hand.) But I guess that's why reachability is there.
After two years it just feels normal, when I have to do something to my wife's 4.7" iPhone it actually feels small and awkward to use to me now. It slips around in my hand as I try to use it, it's a lot like watching a gorilla with a TV remote I'd imagine
I don't have pocket problems with it because I don't wear skinny jeans, never going to happen, everyone who isn't a woman looks odd in skinny jeans and don't even get me started on meggings
Anyway, that's beside the point, everyone is going to be different, only natural. The advice I normally give to petite people is, don't buy a Plus unless you're happy to use it two handed. If you don't have BFG sized hands and want to comfortably use a phone one handed, the smaller iPhone is a much better match for you.
I've no doubt next years model will come in a smaller frame. But if my experience with large screened Android phones is anything to go by my advice will stay the same, the small difference in size doesn't seem to make much of a difference in use. Even on the S7 Edge which is smaller than the iPhone 7 with the same size screen, I still found the top right corner to be about as much of a stretch, so no real change for me. But hey, like I say, that's just me.
. For me it's more of a reading, music, photography and Entertainment device than a phone so the plus is better. If you are mostly a phone user get the small one. Having had the two phones (Mrs had my white 6s) l'd rather put up with the larger size for the things that are important to me. Good luck if above makes sense (dyslexic)