There is simply no better show in Vegas and "O" is by far the best of the Cirque Du Soleil shows. The arena / concert hall that it is performed in is top notch and with a dark decor that sets the mood just perfectly as the seats are comfortable from the balcony to the wet seats. I prefer the wet seats as you are closest to the action and no one really gets all that soaked from the water acts.
The choreography is breathtaking, the singing (in their unknown lyrical language) is fantastic, and they feature some of the most beautiful ballet, acrobatics, gymnastics one could ask for. The story is clear, yet there is no dialogue throughout the entire show. Its artsy, but downright impressive. Words can't possibly describe the magnitude of this show and the Bellagio should thank their lucky stars to have landed such an amazing gem of a show that will hopefully continue for years on end.