Female here, 5'3, and I absolutely LOVE my iPhone 6 Plus!!!!!! Loved it the moment I saw it in the Apple store window in the wee hours of the morn after they took down the black drapes, loved it when I was able to fondle one they brought around while we were waiting in line, and totally loved it once I had my very own. The larger screen real estate makes a huge difference, and so does the larger keyboard. Yesterday afternoon I took both my iPad Air and the new iPhone out to the deck. I did something I never, ever did with my previous iPhones: read the Washington Post online, read and responded to a couple of emails, read forums, played a YouTube video..... The iPad Air stood idly by, and I never even touched it. No need. In the old days the iPhone would be out on the deck with me but it was the one standing idly by as I used the iPad to do all the kinds of things I mention above. I'm delighted that now I will get much more use from my iPhone.
I consider this device to be the iPad Nano, and she fits in beautifully with her larger sisters, the iPad Air and the iPad Mini. Nice that she happens to be a phone, too!