I signed up for Project Fi and I dont need my Verizon phone anymore. I updgraded to this 4 months ago and is in great condition minus one small 1/2 inch scratch on the front upper screen
so far its pretty good. Definitely flash the phone to a rom that you can lock on to a carrier. If not, the phone keeps bouncing between Sprint and T-Mobile towers. I have a Nexus 6 and i flashed the Pure Nexus Rom. It allows me to pick the carrier i want to use instead of having it auto pick.
The most important part to keep in the back of your mind. you pay ~ 50 bucks a month so don’t expect amazing cell service.