I stayed in Valeria's apartment with my husband in September for six days. The flat was exactly as described on the website. I appreciated the apartment not facing the street, therefore it was quiet. I know Buenos Aires well. The location is perfect for walking to Recoleta cemetery, Avenida 9 de Julio, Calle Florida etc. and the metro station is not far away. There are also tons of restaurants and cafes nearby.
If you have any problems or questions, Valeria and her friend Pia are very helpful.