Our transfer from Berlin to Frankfurt was a nice, safe trip broken up by two one hour stops to sight-see. Jan, our driver was very friendly and a lot of fun to travel with for the 5+ hour car ride. He took good care of my wife who uses a wheelchair and was very helpful with the luggage. However, Jan was not a knowledgeable tour guide as the description of the trip has indicated when we booked it. We thought we would be getting someone who knew the tour stops and would walk around with us as a guide. Instead, we were dropped off and told to get in touch with Jan when we wanted to be picked up. We still had a good time on our own but nonetheless it was not what we were expecting.