“It’s good because it’s dumb, simple, obvious. (And rabidly commercial - they’re furiously building a commercial ecosystem for this thing.) There’s not much to go wrong. (Except my browser keeps warning me that the commerce site is ‘untrusted’.) This feels like another prototype of a measuring pebble; something small and simple that will enhance my devices, something I can afford to break or lose but that connects to my expensive, unreliable, easily damaged phone/pad/whatever. And using the code to connect is genius - no need for capacitive sausage skin or hacking into the headphone jack. Easy, cheap, good.”