I stayed in the apartment for a bit over 2 months and it was great! The place is well designed and has everything that's needed for a longer stay. The reception and cleaning staff are responsive, internet connection is pretty good and location of the place is excellent and very safe! All of the appliances are in good working condition and the bed is very comfortable.
It's also right next door from an excellent restaurant called D'Accordo (can be seen from the balcony) where you can get some of the best milanesas in Buenos Aires.