Honestly, you couldn't get a better location to stay in BA. This is right on Plaza Dorrego, right in the heart of San Telmo. It's a fabulous barrio, with lots to see and do (and eat and drink!), and felt perfectly safe day and night.
The apartment is managed by a local company, who provided a seamless check in and out, with timely communication beforehand and great tips for the local area on arrival. The manager, Mercedes, also is a fierce tango dancer and offers free intro lessons to tango and the opportunity to join her at a Milonga - which was a highlight of our stay.
The apartment is perfectly comfortable, spacious and as pictured on the listing. The kitchen is sparsely equipped; fine for breakfast each morning, though you'd struggle to cook anything elaborate ... though with such an amazing array of restaurants on your doorstep, why cook?!
Overall, we had an amazing time and loved having the space and freedom of an apartment to use as a base for exploring San Telmo and BA generally. Happily recommend.