The apartment was great and spacious. Location (plaza dos de mayo) was perfect, walking distance from many sights and by many stores and restaurants. The neighbor is centric with a lively atmosphere, but not too touristy.
One thing that could be improved: although the living room, kitchen and master suite were great, the second bedroom was too warm during summer as the window doesn't open and there is no a/c.
Apart from that, a perfect stay. Totally recommend it