The apartment was lovely and located in a very architecturally interesting complex. San Telmo is one of the older sections of Buenos Aires, a bit run down and gritty, but with many good bars and eateries around. It really comes to life in the evenings and weekends. Also within walking distance of other places of interest. My interactions with Ana were by email only, but she was extremely accommodating and I am sure would have been very helpful had there been any problems.