Recoleta is a great part of Buenos Aries and Gustavo made our stay superb. His place is self contained and we did do a little cooking but the restaurants locally were great and cooking seemed unnecessary. The supermarket is downstairs as well as Starbucks if you need them. We walked most places or took taxis but if you are there for more than a few days get a bus pass over the road from the park.
Gustavo is an amazing host. The view from the apartment is superb. The pool on the roof floor 13 was refreshing.