I got mine today, unfortunately I haven't really had much time to shoot with it. If I feel like editing in the morning tomorrow I'll post my first few shots around the house of the cat and girlfriend, but for now here's my thoughts on it.
I'm blown away by the feel of it. I don't know what I was expecting, but this thing feels like one of the nicest modern lenses I've owned. I'd say even nicer than the build of my XF 18-55mm, which I always thought had a very nice build and feel to it. It's also amazingly light... so much so that I was certain the box it was shipped in was empty The AF is completely silent and seems surprisingly quick (this is my first AF lens for my a7S and was expecting it to be really slow based on the feedback most people give).
So far, I'm a very happy camper