content: I have an Echo for the office.  It gets constant use as an on-demand music player.  It's not life changing but everybody seems to like it so it stays at the office instead of coming home.  The voice recognition is either spot-on or it fails spectacularly, and you kind of have to learn how to talk to it because "play blues music" may not work but "play blues music on pandora" will, which is a little infuriating considering they should do the same thing - people don't care where the request comes from as long as it works.  Probably the neatest feature I never see highlighted is the remote control has a microphone on it, so if you have the echo in an office or other large area you don't have to walk up to it when you're on the far side of the room to make requests or change volume or whatever, you just need to keep the remote in the area where the echo can't hear you.