As mentioned in other reviews, a very authentic apartment in the heart of Sant Telmo. Walking distance to the market and nice cafes and restaurants nearby. The place is nicely decorated and has everything needed for a short stay.
The apartment is a bit run down (especially the bathroom / toilet), and doesn't look as new as on the pictures.
The neighborhood feels safe during the day. But as may be expected from San Telmo, the street does not feel entirely safe during the night time, so one has to be careful.
For families with kids or lots of luggage - remember there are steep stairs (2 floors up), and also stairs inside the apartment.