Our family of 4 (with 2 and 4 year olds) enjoyed our stay in Pablo's AirBnb, located in a beautiful and central neighborhood of BA. Pablo answered many questions for us (our first time in Argentina, traveling from the USA), and was helpful throughout our trip. On the whole, the price point is reasonable for the nature of the apartment (e.g., centrally located, but about 1/2 or 2/3 the price of other places nearby, as many things in the apt older/haven't been updated). The tradeoff was fine for us.
Since there aren't many reviews yet, I thought I'd share a more specifics, both (in my opinion) pros and cons of the apartment, to help others considering the place.
Pros- This is a great apt for families with little kids (e.g., under 6). It is very spacious and large, plenty of room for our family, walkable to many restaurants, parks, a playground (100m up the street), the zoo (10 mins), cafes, museums, etc. The wifi works well, and nice large TV, also numerous children's books and some toys. It's a quiet street, the balcony faces the back/courtyard of the building (i.e., not the street), and we didn't hear any noise from neighbors above/below (just some dogs out barking in courtyards, which you'd have anywhere I would guess). Everything was very clean.
Cons- Most things in the apartment are quite old/well used, and while still functional, would benefit from updating - this includes things like sheets, towels, and pillows, cooking supplies (there are plenty of utensils/plates, but the kitchen is not equipped to do much cooking), washing machine, and air conditioners. The whole apartment has the smell of older people/moth balls, and it is concentrated most in the master bedroom- we couldn't store our clothing in the closet because it absorbed the smell. I'll take that over the smell of cigarettes, for sure, but just noting it. And just generally various quirks of an older home- not necessarily bad, just quirky (e.g., the water sometimes takes 5-10 minutes to get hot in the master bath).
As I said at the start, I think the price point being 1/2 to 2/3 of what other similarly sized (but more modern) apartments cost in the neighborhood makes this a VERY reasonable tradeoff! And always great to have a helpful host like Pablo, makes a big difference!