I really like it! A lot like Wii Sports in the graphics, sound and overall feel. The graphics are better, and more fun the the original. You'll hear the same voices, you'll get points to get to Pro level, and your other Mii's will show up in the background.
I was disappointed at first to see bowling and golf, why repeat it? Once you play it with the new motion control, you'll see why. I'll never play Wii Sport golf again. It's so much more responsive, especially in putting. Same with bowling, making it a MUCH more challenging game!! I think people will love the updated versions.
I've also played a lot with the sword play games, frisbee, table tennis, and wakeboard. I played for over an hour, and only played half the games. So far, it's a lot of fun, and I think it has some good replay value. Not something you'll get tired of in a month.
My only complaint so far is basketball.. a game that I'm terrible at in real life. That tells you just how accurate this new motion control is. lol With some practice it will be a lot of fun too.
Not a whole lot more then you've probably read online, but if there are any questions I can answer, just ask. Thought I would give an unbiased review.