My husband and I and two of our friends took this tour in May, 2013 and really enjoyed it! Our guide was Paul, who was very knowledgable and interesting. We were very lucky as it was a national holiday, and all of the attractions in Athens were closed. The tour took about 3 hours at a very reasonable pace. It was quite a hot day, and Paul made sure that we had plenty of rest and refreshment stops, when required. I would definitely recommend this tour to anyone visiting Athens.