We booked the 1 hour tours for the Louvre and Musée d' Orsay with Uriel and we could not have been happier with Uriel's knowledge of the art work and the history of the museums. He was very accommodating to our needs and interests and planned our tours accordingly. An overall absolute pleasurable experience and will book future tours with him when in Paris. HIGHLY RECOMMENDED! NOTE to fellow travelers: When traveling from London to Paris, remember there is a 1 hour time difference.