The apartment was okay. It is quite small, which we knew and which was no problem at all. However it was somewhat dusty and the shower‘s door was broken so we could hardly get in/out of the shower. Additionally we had a problem with cockroaches; one night we came back to the apartment and found around 6 of them (in our bed too!). We know that Buenos Aires (as many big cities in tropical climates) has a lot of cockroaches on the streets. I think it was bad luck that they got into the apartment, nontheless we couldn‘t stay there after that.
Communication was very great. Martin‘s friend Shanghai received us at the apartment and gave us the keys. Both, Martin and Shanghai were very reliable with answering our questions.