Maria Teresa Rosati was our guide when we visited the Vatican in April 2016. We were very satisfied and happy she was our guide. She is very knowledgeable and eloquent and she provided excellent explanations for everything we saw. She even injected some humor and family details into the tour, which I found very refreshing. I was with my husband and 13-year-old daugher whose native tongue is not English, but even she did not have a problem understanding what we were seeing. All in all, Maria Teresa is an excellent guide and I would certainly recommend her.