If you are looking for a relatively large place to stay in the Recoleta area of Buenos Aires for a reasonable price, I doubt you are going to do better. I simply can't think of anything critical to say.
This is a two-bedroom apartment in a 1970s high-rise (well-maintained) in a nice, central, safe area of Buenos Aires. Almost everything there is new: all the appliances, the floor, the walls, and probably other things that I didn't pay much attention to. And what isn't new works very well. The apartment is relatively quiet, but if you want no noise at all, just shut all the windows and turn on the (new) air-conditioners. There is one in every room. I am sure they also come very handy when it gets hot, which it will. The bathroom is large, the kitchen small but very functional. WiFi is excellent. Many excellent restaurants and shops are in the area. There is even a decent restaurant right in the apartment building! The building has a 24-hour porter, and the elevators work very well. I can't think of a time when we had to wait more than a few seconds.
I also can't say enough good words about the owner. She was incredibly helpful, available and pleasant. She is actually not in Buenos Aires itself, but that didn't really matter since she knows the city well and provided all kinds of useful tips that had nothing to do with the apartment. The people working on her behalf were also pleasant and helpful. Language is a bit of an issue in Buenos Aires -- not many people speak English. So having such a helpful owner is a huge advantage. And she did a wonderful job of decorating the apartment, if that's of importance to you.
Okay, I just thought of something negative -- there is no balcony! But, all in all, I would wholeheartedly recommend this apartment to everyone.