I've lived in BA for a year in 2007 and knew I wanted to stay in Palermo Hollywood. This area is pretty central, but most importantly all the great restaurants, bars and boutiques are within walking distance. The neighborhood has a mix of old buildings with beautiful courtyards and roof patios and new constructions - Gwenole's apt is the latter. While I felt safe throughout my stay in BA, I prefer the new building because they have 24 hour security and BA definitely has some issues with petty crime and robbery. Building is gourgeous - did not get to use the pools because it was not warm enough but they were great. Building rooftop is amazing as well with views of Uruguay. I loved lying in bed and seeing views of the whole city, and most importantly, it was very quiet, which is rare for the neighborhood.
This is a great apt for going out and eating out. I dont think this kitchen would be great for cooking and there are very little basic necessities - not even any tea or mate. We ate out for all meals, but if you want to cook youll have to stock up.
Other things to note is that the water pressure is super intense, so dont open the faucet all the way or you can flood the bathroom. I think this apt would be amazing in summer because of the pools!