The battery is TERRIBLE. A few fanatics will sing it's praises, but it's N5 bad. Do a google search, or check this forum, it's there. The screen on time is awful. The bluetooth will force a weird wakelock that they can't chase down, so it never doses.
The 2GB of ram really shows, as it lags, constantly. I am on my second phone, as I thought my first was a lemon. My first was fine, by fine, I mean, just as laggy and battery sucks just as bad as the second one.
Run. Fast. I am a Nexus guy, and this is the first time I want to jump ship from Android, over how inexplicably bad this phone is.