Overall, i had a very good experience. I booked another place from Brain last year. He's very correct and 'professional'. The place was exactly as the pictures shows. The apto is big, there's a lot of natural light comming in and space to do barbecue and a balcony to chill out during night.
The location could be better. I was with my little daugther (3years) and my wife and it was needed to use more Uber (taxi is very expensive!) than we'd like to get to another areas in Buenos Aires, like shoppings, parks, other neighborhoods. It is the limit between Palermo and Los Colegiales. However, the place is quiet and safe. By 2-3 blocks walking, you will have access to several markets, Deli's, cafeterias, restaurants and general services.
As a reference, you will be located 20" walking distance from Distrito Arcos and Museo de la Ciência.
I do recommend.