Booked online before we arrived, paid for skip the line tickets for Vatican and Colosseum - well worth the money to avoid the long queues in that soaring heat ! Only downside is the collection point for Colosseum tickets is a good distance from the bus drop off point so you have to walk a good ten minutes to collect the entry tickets to then walk back to the Colosseum which isn't the end of the world except when you are tied for time !
The Tour was good overall , although because we got there on Sat night, we had to validate out tickets on Sunday. The office closest to our hotel, Ariston Hotel, was closed. So we had to get metro tickets and make our way all the way to the office at Vatican City, in order to get validation. However, the Pope came out for his weekly prayer , so that was a treat for us. Although I found the cost of the Omnia card a little pricey, however the use of Roma card including the metro was a good combination!.