We spent 6 days / 5 nights at Amilcar's apartment, which is exactly as described and seen in the pictures. The apartment is located in a quiet neighbourhood, relatively close to public transportation, shops and restaurants. We stuck with the "Subte" (metro) and the "Colectivo" (bus) for transportation, both useable with the Sube Card. This was quite straightforward, and the apartment's proximity to bus stops was priceless. An important mention should be made with regards to the little neighbourhood guide that Amilcar and Thomás have put together, useful especially the first few days of figuring stuff out in Buenos Aires.
Communication with Amilcar was seamless, and he was quick to answer any inquiries we had before, during and towards the end of our trip. We definitely recommend him as a host, and will be staying at his apartment again in the future.