The apartment is quite good for the price that we have paid, it is very calm (because it is not facing the main street) and it's got a double bed, TV, Bathroom and kitchen.
The location is near a metro stop (Subte Alberti) so very easy to get almost everywhere. It is also in walking distance from microcentro (30 minutes). We have not faced any troubles in that district but I heard from some Porteños (locals from Buenos Aires) that we should be careful because the district is dangerous. But I must say that besides a couple drunkards and homeless people everything else looked quite normal and ok to me.
The apartment could be better if it would have a fan because it is really hot in BA's summer. We also found that the bathroom could be much cleaner, in particular the tiles (for instance, there was quite a big handful of hairs in the shower, on the other hand Milagros has cleaned the hairs as soon as we told her).
They give you one roll of toilet paper independently of the length of your stay, we have stayed one week and we needed to buy more toilet paper ourselves. In another apartments we have stayed (e.g. In Cordoba, Argentina) they gave us 3 rolls for only 3 days.
Overall, we were happy in the apartment and we think it is a cheap nice option to stay in expensive Buenos Aires.