This was a great way to avoid a long layover in Frankfurt. Our driver was right on time...waiting for us outside of customs. He had suggestions on what to see and a great restaurant for lunch. All seven of us enjoyed ourselves. Our driver was excellent. Thank you for offering this experience
The guide was just fine and tried to do the best he could. The problem was that their isn't much to see unless you want to go into museums. We felt the tour should have been much shorter. Three hours at most, which would still leave time for lunch. We just skipped the last two hours.
It was unclear on where to meet the driver so there was some time wasted. The first driver/guide had back issues so we basically rode around in the car until a second guide/driver was ready. No commentary by the first driver at any point; we had to ask questions to get him to talk. We finally exchanged driver/guide who basically put us in a restaurant for lunch, then led us on a walk through the "center of town" which apparently is a pedestrian mall. If I wanted to shop I could have stayed at the airport. Instead I was hoping for some kind of "private sightseeing tour" of Frankfurt attractions with commentary. Instead, I spent money for time at a mall and at a restaurant just to kill time between flights.