My wife and I stayed at this apartment for two weeks. The apartment is great, with everything you need to be comfortable. The bed is nice, the kitchen is nice, the bathroom is nice, we really has no complaints. The tv is HD digital cable which was great. The maid service once a week is perfect. The apartment has a large balcony which was a great place to have breakfast or dinner and watch the sunset.
The best thing about this apartment is he light. The windows are big and let in a lot of light, and if you don't want the light, if you fear the light, you can close the automatic shutters with a push of a button. Another, best thing, about this apartment is there was really no noise. We never heard neighbors, dogs, or traffic. Which is rare in an apartment in Buenos Aires.
If there was one negative about the apartment, which really isn't all that bad, we would have to say the neighborhood felt a bit dreary. However you are close to Santa Fe, with grocery stores, buses and the subway, so really it isn't that bad of a neighborhood.
Overall a great stay with a great owner, we actually have now become long term renters from these owners because they have other great apartments and keep their guest happy.