Great, great experience! Lots of detailed info in advance to help get aquatinted with the city and how to get to the apartment via taxi. Andy (Dave's relation) was there when i checked in and walked me through the apartment and its ample amenities (guide books, subte card, land line, internet etc). Andy was super responsive and helpful during the stay.
The apartment is very nice, clean and modern. One of my best airbnb experiences.
Highly recommend for out of towners visiting the city for the first time as the help & info provided by the host really made the start of my holiday in BA go smoothly.