Very useful and precious tool.
Very useful especially when you travel in colectivos (city buses) in Buenos Aires. Its not easy to read the street name signs and this application help me to stop at he right place. I use it offline and it works well. Therefore, it could be slow sometime to precisely situate your position. Suppose it could depend of the satellite signal through the metal top of the bus and the 9 story buildings around. Often its hard to read the street name on the map, you have to zoom out to be able to see it. Otherwise, its a very good app.
Djilz about
Buenos Aires - Offline Map, v4.70