Well, I really wanted to like it, but just didn't have time to go through all the music stuff. It feels like this place is much better in terms of seeing performances.
Certainly the stages are wonderful and the Jimmy Hendrix stuff is amazing. Still, it is not a place I'd necessarily go to more than once, although I do love music. The theater is actually cool.
As an aside, the science fiction museum is definitely a visit only for afictionados, so don't really think you should go there.