I will never use aviator again. I booked $20K worth of tours with aviator as I traveled with my family through Europe. Very first excursion went south when only two people received tickets for the Sagrada Familia and everyone else had a confirmed reservation from Viator but the tour agency didn’t have it. Both Viator and the agency blamed each other. We adjusted on the fly but left Barcelona without seeing the site we were there for. 😥. We then travel to Paris only to get two tours canceled because of over booking. We were unable to do either tour. We travel to Normandy. Guess what? Viator canceled. Unlike Spain though the tour agency and Viator reach out to us. Viator tells us to reschedule with another company so we do. The original agency asked us if we still wanted the tour because Viator canceled the tour and they were not sure why. We told them no and Viator already scheduled us with another agency. 12 hours later Viator calls us to tell us the tour is over booked and only six people can go. We request a full refund but they decline be the tour is less than 24 hours from starting. I will never use Viator again!