I hope your comment does NOT get rated down. That would be BS.
That said, I've really liked mine. Kinect Adventures was my *least* favorite game. It's kinda shovelware IMO. My table tennis skills in Sports are getting pretty nuts. I can almost hang with the top difficulty...gotta work on my backspin/top spin changups more..I get predictable with my topspin shots. Playing co-op soccer with my daughter has been awesome. I can even cut a groove in dance central on a few songs (wife has sworn she'll never tell anyone I know that I play it).
I'm totally at a loss on your setup experience. The microphone calibration is lengthy but only needs done once unless you just flat out move to a new room. Everything else can be accomplished in seconds. You can jump from in-game to Kinect Tuner, do your biz, then get back out to your game in like 15 seconds total time...and this 15 seconds only needs to be spent if you move the sensor somewhere. I don't want to say you're doing it wrong but I'm not having any issues here. Can I maybe suggest you are over doing it? IE... you're doing setup when it's not needed?
The voice commands I've found handy too. The "xbox kinect" is just to put you into the Kinect screen...same as waving at the device. From there many more commands are available. "xbox play disc", "xbox espn", "xbox zune" etc. The reason you say Xbox first I thought was obvious. If you're saying "hey man, checkout this new KINECT" you don't want it interpreting that as a command.