Very good communication and we felt very welcoming when we were personally received. It is a nice and quiet apartment, "surfer style". A balcony and a lot of funny details.
The location is 15-20 minute walk from the colourful "La Boca" area and also San Telmo and the port can be walked. We felt safe walking also in the evening, although we have also heard you should not walk it alone during at 2.00 AM, but that might account for the complete city.