My husband and I chose this particular tour as it was considered to be less touristy and had elements of both original and restored parts of the wall. Our tour guide, Jane was fantastic. She provided us with a great understanding of the history and was open to answer any questions the group may have had. She also offered to provide us with helpful tips during our stay in China too, including some dining options that would be suitable for vegetarians and even made some phone calls for us on the coach to enquire. We would definitely recommend this tour to anyone visiting China.
This to me is the very best way to experience the Great Wall, provided you are active and can enjoy a 3-hour hike by yourself which sometimes can be a little steep. Jinshanling is far enough from Beijing to not be crowded with tourists we were pretty much the only group at the wall, fifteen people, and it is vast enough so you can walk by yourself if you like, and also restored enough to be walkable and not perilous. If you are in shape and are up for the exercise, this might be the day you'll remember the most for years to come of your visit to China, like it is ours. Also, the guide from Beijing Backpackers Hostel was very cool.