This location is stellar and makes Recoleta and the rest of BA very accessible to anyone staying here. We were very happy to be able to walk to most places in BA very easily (including longer walks to Palermo) and easily access Puerto Madero and parts downtown by taxi. For the two weeks we stayed, we had everything we needed to live as a family, including a small baby under one year old and five adults in four separate bedrooms. There is a market nearby for anything that someone could need and the accessibility of the apartment makes visitors feel quite safe and comfortable.
Our hosts, Pili and Nicolas, were very accessible both before during and toward the closing of our stay. They were both responsive and helpful in every way. We arrived very early in the morning and allowed us to check-in very early, which was a huge help given that we had a very exhausted 11-month-old baby with us.
Be aware that the apartment is directly next to Avenida del Libertador and can be a little loud due to traffic, motorcades, and the occasional speeding motorbike, but anyone with any city experience will barely notice this. Also, we had to wash everything in the kitchen before we used it, but this might have been a one-off experience due to a quick turnover by the maid service and our early arrival, and it was not a very big deal in the totality of experience.
Overall, the apartment is PERFECT for a long stay in Buenos Aires for several adults and children and we would highly recommend it!