We spent 10 days here in 2012, to participate to a conference. The flat is very nice and, I think, is suitable for 3 people (we were two people, but using two different rooms ; more than 3 people is maybe possible but probably less comfortable). The flat was very well located for us in Recoleta, and it has been also nice for working. I can recommend it and I would be very please to go back in case I come to BsAs again.