My two twenty-ish year old daughters and I had a fabulous stay at Ana's. An associate met us, and went over every detail of the apartment. It was very welcoming with muffins, milk, fruit and coffee ready for us.
It was extra clean and the descriptions were accurate. Neighborhood was good and felt safe, and the metro was very accessible.
The only down side was construction going on before 8 am every morning, right next door.