I bought an 8G N4 when they first came available last year (upgrading from a GSM Galaxy Nexus, which was an upgrade from a CDMA Galaxy Nexus), and it's never been away from me for more than an hour or two at a time since then. I bought a 16G about a month later, but haven't had the need just yet to move my stuff to the bigger model. Glass screen protector, Diztronic TPU case, and this is the best phone I've ever owned (so far).
I got my 16gb N4 ordered pretty soon after release (finally delivered early January). It's actually the first Android phone I liked out of the box, without feeling slow/sluggish. It's now my fourth android phone (first was the G1). Each one seemed like if it were just a little faster, I'd be happy with it.
It's actually a little more responsive than my 2012 model Nexus 7 tablet. Which is why I've been considering getting a new N7.
I've also played with both using the Chromecast, and have to say it's pretty nice and works smoother for Netflix than my typical pattern in the past, which was queue up stuff on my tablet/phone, then use my roku (bedroom) or the tv's built in player (living room).
I went from a Nexus One to an N4, so obviously it was fast to me! Also had a 2012 N7 (JB prompted me to buy the N4). I just picked up a new N7 and so far it's perfect (none of the reported problems), but a little harder to hold. I bought B&M so that I could return it easily if necessary, and hand-picked the only July manufacture date out of 8 other Junes.
