51/100 on Metacritic, but unlike a lot of Wii games it's not really a mixture of really high and really low - it seems to be all middle of the road. I think it would have to be $10 for me to bite.
Dang, I've been waiting for it to drop to this price. Okay, I'd probably prefer $15, but I'll probably go for it anyway.
I was a bit turned off by the reviews, but there's a thread in the Wii forum where CAGers who've played it gave their impressions (both good and not-so-good). It's worth a read for those thinking of picking up this game.