I've been using mine since a few weeks and I really love it. Speed is good, no real lag, completely reliable. And, important to me, the Bluetooth connection it makes is rock solid.
I have only installed 10 apps so far. I don't want to clutter it. I was dreading the copper trim because the photos looked ugly to me, but in person it looks nice.
The only things I would change are the placement for the fingerprint sensor, and the volume rocker and power button don't stick up very well. I got a tpu case though, which makes the buttons easier to use.
I got the updates over WiFi the first time I turned the phone on.
I absolutely love this phone.