Hasan and Marina are great hosts. Hasan provided lot of valuable information on Rio, answered my numerous questions efficiently by email. Apartment was clean, nice, all appliances worked perfectly (specially air condinioner - must have even in the winter in Rio). Great location: less than 5 min walking to Copacabana beach, 2 min to the subway station, lot of bars and restarants in the area. I will stay again and reccommend Hasan's apartment to everyone traveling to Rio.
Thank you very much Hasan and Marina.