We stayed in Agostina's loft-style apartment for a week and loved it! It had everything we needed to make us feel at home. The kitchen is stocked with most utensils you will need, or there are plenty of restaurants in walking distance if you don't feel like cooking. Palermo metro station was a 10min walk away (tip: walk down Humboldt St instead of the main road) and the green line takes you to most tourist areas. Agostina was super prompt in replying to our messages even though she is not located in BA and also gave us her mum's contact details.
We felt quite safe in this neighbourhood (both day & night) and we would 100% stay here again.