We stayed 4 weeks in Iara's apartment and it was great! The apartment looks exactly like on the pics and has a huge fully equipped kitchen and a big living room. Everything was totally clean as the cleaning lady came once a week.
Iara and us were in contact all the time and she answered all our questions and gave us tips where to go and what to do. Upon arrival she arranged a transfer from the airport which was really relaxing for us.
The barrio Villa Crespo is very nice, with lots of restaurants and bars. Not many tourists are coming to Villa Crespo, thus it's a very authentic area.
I totally recommend staying in Iara's apartment - everything was perfect!