Ines has a very good place. I especially enjoy the helpfulness of the attendant, who took care of an issue with the bathroom door and helped me with finding a place for laundry coins.
The location is fairly nice, although it's far enough south that you will walk another 10 minutes to get to the best restaurants in the north and in the east. Access to Parque los Andes, the Dorrego subway, and my favorite cafe 0295 is sufficiently easy.
There currently is a bit of construction on the street, but there's no noise, just rubble down the Villarroel and Vera avenues. But these minor quibbles haven't influenced my recommendation here.
The area is as safe as one can expect from BsAs, and I am very grateful for the three-key system that's used for two access doors and the door to the apartment.
The process of drying clothes leaves something to be desired. I wish there was a better way; the tiny rack is unreliable.
I stayed for a long time here but you are bound to enjoy even a short stay.