I'll feel like echoing some of the other reviews here feels correct - it's Wii Sports but without the soul. I'm not sure exactly what achieved that, but it does feel lacking compared to the entries on the Wii.

I also think the variety of games didn't help. Bowling is a must and is still fun to play, but it does seem a little odd to have three different net games (Tennis, Badminton, Volleyball). I believe the experience would've been improved with some other options from games past (Baseball, Basketball, etc.)