we stayed in Daniel's flat for a week. This place is big enough for 4 people. Very easy check in with his friend Ademar. The apartment was clean. The pictures are very accurate. Well located, close by the subway. Neighborhood is safe and quiet (except during the Porto Rico National Day, but it's once a year)
The air conditioners in the rooms are quite loud so we couldn't sleep with it ON because we're not really used to ACs but they work fine and cool down the place.