I stayed here for 6 days with 6 people and would highly recommend this apartment. Luis and Eugenia were very patient and flexible with arranging our visit (we had some delay and arrived after midnight) and welcomed us with tips and wine. The apartment is spacious, very clean and beautifully renovated, with a modern decor precisely as in the pictures. If you close the windows in the living room, the apartment is very quiet. Some basic utilities are provided for, such as kitchen supplies, shampoo, blow dryer, towels and extra blankets. Although our request for extra towels was apparently unusual, Eugenia responded kindly and provided them anyway. The apartment is situated on the 4th floor of the building, and the other apartments that they rent are situated on the 3rd floor. There is no elevator, but that was not a problem for us.
It is conveniently located in the old historic city centre, with the river, sights and many restaurants within walking distance. You can easily travel to the apartment from the airport by using the metro line E, switch at Trindade to line D and exit at Sao Bento (45 minutes). Its a 5 minute walk to the apartment.
We were all very much pleased with staying at this beautiful apartment filled with sunlight! The only downfall I could think of is that the bedrooms tend to become warm overnight as there is no ventilation, but fans are provided. The nearby construction work also awoke us every morning, but of course there is nothing Eugenia en Luis can do about this and they kindly provided earplugs. Also, there seem to be construction works all over the city so you will have this problem anywhere else as well.

So, I highly recommend this apartment over any of the hotels I have seen! Perfect location, clean, spacious and tasteful modern decor. Very nice for a group to be able to sit, relax, cook and eat together. Thank you Luis and Eugenia!