I'll be honest. I still don't like the 5 star rating system. I understand the arguments for it.
I just think that since we are seriously considering a change to ratings, then we should also consider letting users have more than 5 options to differentiate shows.
Having to rate a good Phish show as a 2 is not something that appeals to many fans i'm sure. With the 5 star rating system, how often are users really giving the 20-40th percentile shows a 2? I would guess, almost never.

I'm not an expert, I am just going by how I feel about things. I hope those who have all the data make the correct decisions about how to proceed. The ideas presented in this article seem like a step in the right direction.