We took two tours with this company, a half-day tour and a full-day tour and both were…read morewell-organized, and reasonable for the services provided. I did extensive online research for Istanbul guides and found them to be very expensive. However, this company's tours were a good value for the money. On the full day tour, lunch at a hotel was included and it was a fine meal. The guides were well qualified, although it was sometimes difficult to understand their English. In the morning of the full-day tour, however, each person got a set of headphones to carry/wear as we sat on the bus and as we walked about. This was a very good system to insure that people at the back of the bus or on the outer ring of the crowd could hear. I highly recommend this company and suggest that you avoid private guides that will charge as much as $200 to $300 per day. We paid 118 Euros for two people for a full-day tour including lunch The tour covered the major sites in Sultanahmen (Blue Mosque, Hagia Sophia, etc.) and also offered a wonderful ship tour of the Bosphorus.