I lived 6 months in buenos aires and 2 of them i stayed in aris apartment. this is why i can confirm that the apartment is well-located. close to the outlets and just one block away from some of the nicest clubs and bars in buenos aires.
the apartment is really modern and has everything you need for a shorter stay.
furthermore, ari is really committed to help and make your stay really comfortable. if there some urgent problems, there is still a housekeeper living in the building.
i really can recommend this place, especially for young people