Gema was such a great host, from the moment I messaged her initially and throughout my stay at her apartment. She responded to messages within minutes and answered all my questions. She went above and beyond in terms of what I expected from a host. Also, for international travelers, Gema's English is impeccable.
In terms of the apartment, it is a very rustic and charming unit, exactly like the photos. If you like a multi-level loft-type place to stay in, this is a very good choice. It is in the middle of an active neighborhood full of bakeries, shops, cafes, and restaurants, and a few blocks away from the metro and an area full of taxis at all times of day. You can't ask for a more convenient location.

The only issue I had was me and my friend came to stay in the middle of winter, and we ran into one of the colder winters in Buenos Aires, and perhaps because of the extra use of electricity/heat, the complex ran into electrical problems. We (along with all the units in the complex) lost the use of hot water, heater, and all electricity for a couple of days. This turned out to be especially bad in the cold winter time. Gema was very apologetic and tried diligently to help us through it, despite being on business half a world away. As a truly genuine host, she even offered to compensate us without us asking. Unfortunately, due to my untimely experience, I have to knock off a couple of stars to an otherwise nice airbnb.