Yes.
I've had a blast with every game I've played. My favorite has been Dance Central and my least has been Joy Ride. I played Kinect Adventures with my wife and two other friends and we all had an absolute blast. I played Dance Central with my wife, who never plays games and especially hates motion type games where she makes a fool of herself, and she was beating me at it all night and we both had a lot of fun with that too. That game even got her to make her own 360 profile.
Aside from the game, the voice contols are amazing and can only get better. The moment I became a Kinect fanboy was when I was in my kitchen washing dishes and I had lat.fm playing. A song I didn't like came up so I said "Xbox, next" in a normal speaking voice. I didn't expect it to work but to my surprise the app went to the next song. Since then, I've loved the voice controls to death. They need to be added to more apps, but if what's currently there a sign of things to come, color me impressed.
You can call me obviously biased towards Kinect but I don't care. I got it day one and preordered it months before release because I knew how good it was. I can't wait to see everything that comes out and gets announced within the next year, I'm sure E3 will be amazing for Microsoft this year.