Simply excellent !! Gus was a terrific host, very responsive to questions and proactive to send infos and recommendations.
Gus' place is incredible -- a really nice, big, comfortable oasis in the city. The neighborhood has plenty of markets, restaurants, bars, cafes, and other things to do so you can easily spend all your time in Palmero, but it is also easy to get to other parts of BA by foot, metro, bus, or uber/taxi.
100% recommend to book with Gus, I will do the same when I return to Buenos Aires.