Received my Space Gray M5 / 512 today.
I sold my first gen back in January, thinking that I could replace it with a single iPad Pro... using my MacBook Pro 15 as my primary portable workhorse. I was wrong. The MacBook Pro is (relatively) HUGE, connected to multiple monitors and peripherals, and subsequently doesn't leave my desk often.
Love the iPad Pro for certain tasks (mostly diagraming / idea sketching / note taking), but as a software engineer / researcher / IT geek, I need a full blown OS and dev/UNIX/virtualization tools as well, in a package that can accommodate frequent quick and effortless transport. So I got the new version of my favorite little workhorse back.
I loved the previous generation model, and I love this one even more. A lot of power in a tiny, take it anywhere package; it does everything I need it to do and has yet to fail me at any task.
I have a pretty complete Apple arsenal right now. Not gonna lie, pretty proud.