Once we found it, it was perfect for us. Close to the metro line, the Bell Tower, and the Muslim Quarter, but knowing the trick to finding it would have been helpful.
The trick to finding it, head north (on the west side of the street) on on North Street No. 1 from the metro line, go past the Starbucks, the Pizza Hut, and the store entrance on the corner facing the main street, turn the corner, go past the second store entrance, and walk inside a nondescript lobby (see the third pic) to the elevators. Take the elevator to the tenth floor, take a left in the hallway to the office, and meet the nice people who work there.