Ayelen's apartment is a pearl in the San Telmo neighborhood. It is a new apartment building in a neighbourhood that might not be the most posh or upper class in BA but this city is so big that where ever you are staying you have to travel a lot if you want to explore this great city.
The apartment is very comfortable and absolute value for money. There is even a little balcony and the neigbour is a very helpfull guy. You can have your laundry done in one day for 20 pesos by a very sweet chinese lady on Piedra only 1 minute away. Public transport connections and convenience stores are all within a few minutes walk.
If there is something that might be improved it is the airco in the bedroom as it leaks water sometimes but that is a minor detail. I would definately recommend this place to those who don't want to spend a lot of money on overpriced hotel rooms and who like to stay in an area that shows you the real BA with all its little restaurants and antique shops.