This is an amazing place to stay in Buenos Aires and Ivan is an amazing host.
First, the building is very secure in a nice neighborhood. I never had any concerns about my safety in the building or walking through the neighborhood at all. And the neighborhood is AMAZING for eating, drinking, just walking around, and is close to all of the other touristy spots (15-ish minute taxi to most parts of Recolta and 20 minutes to Puerto Madero).
Second, the apartment is just all you need. The balcony is my favorite amenity by far. It is clean, the beds are comfortable, the dining table is perfect. The shower and the bathroom is great - good space for two girls to do makeup at the same time. Very comfortable and inviting.
Lastly, Ivan is amazing. He is kind and welcoming. He sent an organized list of all the things we should do and see in Buenos Aires and gave us a realistic review of the neighborhood.
I 100% recommend this place. Its the best value and quality you can find in the city.