This is a very comfortable apartment. Good for a couple or for a couple with two children. Great neighborhood, restaurants and parks in walking distance. Doorman in the building so very secure. Hosts are fantastic and attentive.
One thing about Buenos Aires -- very few restaurants and shops seem to accept credit cards or debit cards. This is in stark contrast to other Argentine cities (such as Mendoza) where you can charge a few dollars worth of groceries on your credit or debit card. Most BA businesses and restaurants will only accept payment in cash. If you are Argentine, this probably isn't an issue, but if you are from the US, the maximum withdrawal from the ATM is 2000 pesos at a time + a 100+ peso fee. If you are coming to BA from the USA -- get a lot of Argentine pesos (in cash) before you come.