I've been playing it, and enjoy it.
I usually do decent during the live shows, but during the extended plays I stink horribly. If you haven't played extended plays, here's how it usually goes. First 10 minutes is good trivia with general knowledge, after that it's a flood of questions all about names of people from way back when, and questions about musicals (mostly rent and wicked)... And I suck at those questions.
I enjoyed the community written and the E3 episode. I hope they have more themed shows like this when it releases.