I would highly recommend this flat to anyone visiting Buenos Aires. It's the equivalent of a 4 star hotel with a big difference in the price. It	's located in a very nice and safe neighbourhood, 3 minutes walk from an underground station (subte). It is very clean and it has everything you may need, from a coffee machine to a sewing kit.... The fridge includes beverages sold pretty much at supermarket prices (the hosts include a price list on the fridge). The hosts are extremely friendly and at your total disposal. Both Elisa and Carlos were great with us. Even Elisa's mother who we happened to meet was very nice. They gave us their phone numbers to call at any time for anything we needed. They even provided us with a pay as you go mobile phone to use while we were there. I would recommend to use the transfer service from and to the airport through the hosts since it's cheaper than getting a taxi.
Overall it was a great experience staying at this flat.
Elisa, muchas gracias por todo!