I've been with my Nexus 6p for a little over a week at this point, and I've got to say, I love it.
Size wise, I think it might be a touch too large for what I'm looking for (the OnePlus 1 really was ideal), but with a decent soft-touch case on the back I'm not having too much trouble gripping the phone with one hand. The camera seems solid, which coming from a phone with a very decent camera in the 1P1 was all sorts of essential. I'm still a touch worried about that giant glass camera region. I'm absolutely certain that *IF* I rub against a wall it'll be the first thing to crack, and I'm not sure how replaceable it is with the unit being sealed.
All in all, it's a lovely phone. Marsh Mellow is real nice too.