I interned at Reach Out for two months during 2012 and, in spite of how much I enjoyed my time in Cairo, I feel that it is important to warn others of the pitfalls of this specific NGO.
The guy who ostensibly runs the organisation lied to me about Arabic classes (both in the information designed to lure applicants in, and during preliminary talks, prior to travelling out), saying that I would get free lessons, which never happened, even after repeatedly asking, and organised an airport transfer which cost double what it would have to get a taxi independently.
The apartment which he 'helped' me to find was far more expensive than those of people who worked for other NGOs and entirely dilapidated; the oven, internet, A/C and several lights didn't work, and due to the fact that my Arabic wasn't good enough to communicate with the bawab fully (see above), these issues were never resolved during my two months there. Furthermore, when a friend of the opposite sex visited, she was chased out by the bawab with threats of calling the police - No-one told me that this would be an issue in my building and, because I knew many other people who had no issues bringing guests of both sexes into their apartments, I assumed that mine would be the same. I appreciate the importance of respecting cultural attitudes, but it seems moronic to, when finding accommodation for a visiting Western intern, select somewhere in which such moral impositions are made on those who have no interest in either maintaining or breaking them.
The teachers who work at Reach Out are all committed and were incredibly supportive, but the manager himself ran the organisation like a business, with little to no interest in the welfare of his interns. Halfway through my time there, I discovered that all other teachers were paid a small sum for each class they taught and, considering the extortionately high rent which had been organised for me, I asked if I could be paid a similar amount for the remainder of my stay; the manager said he would put the matter to a 'finance board' (which later turned out to be fictional), and subsequently refused to support my living expenses.
The two months in Cairo were superb, however; I enjoyed almost everything about the experience, including the teaching itself. The city is a wonderful place to live, and it is easy to travel further afield. What I disliked, however, was the management of the NGO's attempts to rip off both staff and paying pupils alike, and so, in conclusion; by all means, go to Cairo, but steer clear of Reach Out.