I spent 1 month in this apartment. The apartment is 10min walk between two metro stations. It is also walking distance to all places in Palermo. It is exactly as it is described. The place has 24h security and they only speak Spanish but are very nice and friendly.
Mauro was very friendly and responsive. Whatever I needed he was there to help.

The only minor negatives I can mention are: Internet is a bit slow and sometimes crashes, shower and toilets are connected, washing and drying machines are on 9th floor and take 8pesos coins that are not easy to come by in Buenos Aires. You need to ask for a key of laundry and have 3 hr to return it.