although I am no longer living in Buenos Aires I was there for almost 10 years. I specifically choose the apartment for the location, close to public transport,residencial but also very close to restaurant and commercial area. big plus is the pizza and empanadas across the corner. For me the street noise was not an issue but you should take it into account if you are a light sleeper. Balcony is super to relax.
there is no courtesy water provided but there is a supermarket close by. Same for tea varieties etc, just do a small shop and you are all set.
the check in and check out was super easy and the host was very accommodating. Overall a great experience.