Two stars because honestly, meh, I've experienced better.
For what I paid for, I expected more. Saw some shows in Asia before that did what O does and paid more than half the prices. I choose Zumanity over O. The details are great, but only if you truly know what's going on in the storyline.
The set is beautiful and very glamorous.
If this is your fist time seeing a show like this, then maybe it's worth it. If this is not your first one and you seen something similar, then chances are the other ones are better.