We (family with two children) spent 2 nights in Christians apartment which is centrally to the town (walking distance to get the bus to the Corcovado and we even went to the starting point of the Sugar Loaf cableway). The apartment is comfortable, the rooms are higher than in more recently build apartments.
Located in the 3rd floor with guard at the entrance it was also safe.
Christina provided even some fruits. Can recommend the apartment.