This apartment could not be better. It is modern, very well equipped, clean, and well maintained. The bed is perfect, there's enough storage, and the main bathroom is just off the bedroom, wth a second toilet downstairs. There is a nice sized balcony off the living room with a large built in grill and dining table. The kitchen is adequate for basic cooking and self-catering. Outside, the building are two locked entry doors for security and an elevator in the lobby.
The location is in the middle of so many cafés and restaurants that you could never visit them all. The bus stops a block away and the subway and train are a short walk. There are grocery markets, meat vendors, vegetable markets, and any service you could near near by as well.
To add to to mix the hosts are kind and helpful. I highly recommend staying here when you visit Buenos Aires.