Warning - Do not book through Viator. We had booked a 6am balloon flight and were making our own way there with an Uber. We had left the hotel at 4:30am to enjoy a sunrise experience. When we arrived at the meeting point we were told no flight had been booked in our name. We were a group of seven, travelling with children. This was our last day in Mexico City. Imagine the distress, disappointment and upset. A rep from another company was called who then phoned around trying to get us on a balloon flight. We were offered a flight at 8am with another balloon provider. However, that would not have got us back in time to Mexico City. A a flight was eventually found at 6:45am and we were rushed over to a different provider and put straight into a balloon. We missed all the photo opportunities that the other families got for the hour before and and also missed breakfast as we had to rush back. Viator have refused any liability for the stress and missed breakfast. This is the second time I have booked through Viator and the second time my booking has not been acknowledged. Previously in February 2019 I booked a city tour of LA with my children. We waited over an hour in the hotel reception, phoned numerous times to be told that despite booking to be picked up from our hotel, they did not actually offer that service. I did not receive any refund then either. Please do not waste your precious time and money with this company. The balloon flight itself is magical and I highly recommend. I have taken balloon flights in Europe and this far excelled any of them. Just remember to book direct with the companies themselves.