The iPhone 7 Plus is taking some getting used to. I love the larger screen—I can easily read ebooks and websites on it—but that sucker has a big footprint. It's bigger and heavier than my 5S, so schlepping it about is awkward. It doesn't really fit into my pockets the same way. The whole man purse thing is a non-starter.
It's also a bit unwieldy to use in one hand. I'm using muscles now that weren't needed to manipulate the 5S.
Phabulousness comes with some tradeoffs, but no buyer's remorse. Not yet.