Two main observations from having one physically instead of reading about it:
- Holy crap is it slow. Simple apps take like seven seconds to launch. They're still working on performance, so this isn't a fair judgment yet to make; just commenting on the current state of things.
- They're much smaller than you'd expect from the photos. If I stretch my thumb and pinky out to their widest it covers the breadth of the entire machine, including the keyboard.