Tomas' place is spacious, comfortable and has a big and lovely terrace where we had breakfast every morning (except for the few days when it was raining). It is situated in a nice and safe area, in walking distance to many of the sights and places we wanted to see in Buenos Aires. It is a good thing if you like to walk when you stay in Tomas' apartment, since it is situated on the top floor and there is no elevator in the building :)
Communication with Tomas was very easy and if there was anything extra we needed, he was very fast to help us with that. He provided us with a book with personal tips of what to do in Buenos Aires, by which we found some good restaurants with we would not have discovered on our own.