Our trip was awesome, and we will definitely recommend Viator and our guide (Stefania -- sorry if name isn't spelled correctly) to all our friends and colleagues. Not only was our guide informative and knowledgeable, but she didn't rush through anything and made sure that both my husband and I were informed equally throughout the whole tour even though our focuses were sometimes in different directions, as there was so much to see on the walls, the floors, the ceiling..
A+++ for our private tour. Well worth the investment and cost. Would do it all over again. We will definitely use Viator again for our future Europe trips.
Thanks again for a seamless tour, and super thanks to Stefania. No red tape, super ease of use and clear instruction all the way.
My advice would be, unless you travel to Europe often, and if this may be a once in a lifetime trip for you, spend a little extra money and take the private tour. If a private tour is not in your budget, definitely go with a group tour with Viator. You won't be disappointed.
Patricia and Vincent Destajo
Rome trip, August, 2012