Booking this tour was definitely worth it given the lines without it. The guide, Guillermo, was really good and had lots of side information. He kept the group together pretty well. I did have a little trouble with the radio set, but it was understandable. If I was standing close to him, I removed the earpiece and listened directly. I don't know if any others had issues. I strongly recommend booking this tour.

Very knowledgeable guide and excellent tour.

Our guide Marie-Terese took us through the skip the line entrance on a very busy day . Once hooked up with our radio she pointed out all the most relevant things to see in the short time ( 3 hours) we had with her . You could spend a week there and still not see everything! She managed to keep us all together during our tour and at the end of the tour gave us some usefull pointers to see other things . We went up into the dome which was amazing .

The tour was really good but was unable to get pictures as so busy.

The tour guide was excellent. There was lots of information. It took a while before we actually left to go to the places and then it was so busy inside that we were unable to take the time to look at the things or get pictures. There was so many people inside the chapel and the museum that it was becoming dangerous and a health and safety matter due to many people pushing and getting hurt.