After reading the yelp reviews, we exchanged our Zumanity tickets for Beatles Love. I think it was a wise decision. We got there right on time and were still upgraded to closer seats.
As with Ka, Beatles Love had high-flying acrobatics and (of course) awesome music. There's a pretty cool light show too.
You don't have to love Beatles or music to like this show, but it helps. Otherwise, you'd be like my friends and not know any of the lyrics.
I was able to find tickets for our group online for $55. I would have paid up to $90ish for this experience though.