We went to Rome and Egypt. The ride from the airport to hotel from Egypt exceeded expectations as he actually took us from the output line of the airlines and made sure we successfully were processed through immigration. We were also extremely impressed with our tour guide (Sam) for the Giza pyramids.
Contrary to our usual experience using a travel agent, we were able to get exactly the airline seating we wanted directly from Delta airlines. That alone makes Tripmasters using this better than going through a travel agent, never mind that we saved a lot of money doing so.