Beijing Hikers was listed in both the Lonely Planet Beijing City Guide and the Lonely Planet China Guide’s 2015 editions as one of the “reputable companies and associations that run recommended trips to the Great Wall.”
(We do hikes off the wall as well, which is something that is most of the other companies and associations don't offer.)The “Visiting the Wall” section of both books also mentions that tours run by “specialist tour companies are far preferable to those run by ordinary hotel or general travel companies, as they tend to cater more to the needs of adventurous Western travellers and don't come with any hidden extras, such as a side trip to the Ming Tombs (a common add-on) or a tiresome diversion to a gem factory or traditional Chinese medicine centre.”
A good point, also. In case you're curious, we don't make any surprise shopping trips on our hikes.
Thanks, Lonely Planet!