DriverInRome is a good choice for private tours.
We had a lovely time on all our excursions with your company. All of our drivers were very good, but we especially liked Paolo on our last day. He was top-notch at pointing things out to us and suggesting other sites for us to see. My parents particularly enjoyed our tour of the Sistine Chapel - we give very high marks to Stephanie, our guide. We also thoroughly enjoyed our visit to Pompeii. Sorrento and Positano were a little too cold, windy, and hilly to enjoy. If the opportunity presents itself, we will use your company again. I have also told several people I've met that DriverInRome is a good choice for private tours.