Great fun but just buy the tickets there at the stadium. The tour forced us to pick up the tickets somewhere in the center city prior to the tour that was in a completely different location in Barcelona. It's just another drain on your valueable vacation time. The tickets were not issued for a specific time, so buy the tickets there when it's convenient. Otherwise the tour was worth the time and money. There is a lot to see and enjoy.
The illuminations tour was a waste of time. We already has seen the town from the hop on, hop off touring bus so we ended up seeing the same sights that we had seen earlier in the day. And the illuminations part was a joke. The tour was done in the evening prior to dusk so none of the monuments were lit up. Regarding the Flamenco show, we had a great time. The fact that we had purchased dinner enabled us to sit closer than the people that had just purchased a drink. The show was splendid. The music and dancers were outstanding. We had to find our own way back to the hotel. Alls well that ends well but I have to say that this tour was poorly run. It seemed like the viato agent didn't really know what to do. They were making in up on the fly. My recommendation is just to find the Flamenco club on your own and enjoy the evening.