For me, it was a unique experience for different reasons. It is a story of love being destroyed by murderous simple-minded people who think love can actually be forced on. But all the pain caused is avenged by the gods in the end.
The same idea of love being possible after death, if the world could not be its setting. An idea of hope. Although hope is sometimes not one of the greatest ideas. It is hard to kill and sometimes opens the door to pain.
The photos in this post are a bit old (taken during the same ballet in 2005) and available here.
All in all, it was a great experience. When one first goes there, one is caught a bit in the lack of synchronization that sometimes occurs, in the little mistakes. But as long as it is not overwhelmingly bad (which was the case of a certain ballet of last year's performances) and as long as you come with an open heart, it is just a breath taking experience.