Poor service they sell you tickets from a third company so you will never meet anyone at the site you are visiting or touring. The guide Silvia rushed people thru the tour and lasted only 30 minutes most of the times we were rushed from one hall to another also don’t believe when they tell you front of the Line either at the entrance of the Louvre or at the Mona Lisa it does not exist. Buy your tickets directly at the location Viator gets their tickets from another company who gets it from another company who gets it from the location so 3 people tack on money for zero service they perform. I got no tickets for the Effeil tower because the location to pick up the tickets changed 3 times. I bought 3 tickets from. Viator who charged me $160 Euros and when I didn’t get the tickets I paid for I bought my own and paid $70.70 Euros to go to the Summit of the Effeil tower.