Lorena received us for the check in and check out (she is Rosaura's colleague).
The place is just 100m from Avenida 9 de julio and 15 minutes from Retiro's bus station and 20 minutes from Aeroparque Newberry.
All you need is just 5 minutes walk from there. The apartment was the same as we expected, quite clean and confortable. We spent great days exploring Buenos Aires.