My partner and I stayed at Mauricio's place in San Telmo for a week & enjoyed our stay. The apartment is in an incredibly iconic Buenos Aires building and the flat was such a unique place to stay (as you can tell by the photos). Central air was much appreciated on those hot day/nights, too, and the tiny shower (though still a big bathroom) didn't bother us at all. Might have been too much space for just two people, but what the heck! If you've done your research and know you want to stay in San Telmo, this is a great option. Although not directly on Calle Defensa (busy, loud, but classic and lively San Telmo strip), this apartment is close enough and has other great streets close by to explore like Chile and Peru.