Mily is an absolutely fantastic host, always willing to help if there are things you need help with and at the same time never being in the way when you'd rather be alone for a while.
When you arrive at her place she gives you a pre-paid mobile phone with an Argentinian number, all you have to do is put on some credit and you will no more have to pay the outrageous roaming costs your own provider would charge you if you used your own telephone.
Also she will give you a chip-card for public transport (the tarjeta SUBE) which you can use on the metro, buses and even on short-distance trains. Credit for both the SUBE card and the telephone can be bought less than two blocks away from where she lives.
She cleans the room every day (and even makes your bed if you haven't done that yourself).
The room is very small, but is in fact a completely independent micro-apartment with it's own front door to the stairs and it's own shower and toilet-allowing the guest complete privacy.
The only negative point I can think of is some traffic-noise from the street. This didn't bother me at all, but I would not recommend the place to bad sleepers since it goes on day and night.
I enjoyed staying there and will certainly go there again the next time I go to Buenos Aires. Thank you, Mily, for being such a wonderful host.
Frans, Amsterdam.