Good location to stay in Buenos Aires - <5 min walk to San Telmo, Teatro Colón and buses all across the city (direct ~30 min to Recoleta, art museums and Boca).
If you plan to cook, this may not be the right place though. The kitchen wasn’t super well equipped (e.g. no chopping board) and there was no washing up liquid, which we were told after arriving guests are responsible to supply. However, if you plan on eating out the whole time, then this is a great base to explore the eastern half of BA.