It's enjoyable enough, and I'll keep playing... I look forward to golf coming later this fall, but I REALLY was hoping that archery and disc golf from Sports Resort might be included. Those had such a high level of replay value.
It doesn't seem like anything has the accuracy of the Wii Motion Plus (not sure if it's a hardware limitation), but older games like Ping Pong required a fair amount of skill, where Tennis, Badminton and Vollyball all seem to stay in bounds no matter how you hit.