I enjoyed my stay at Cristian's apartment. It was very convenient for getting to my company's office, which is why I chose it, but it also is a good location for just visiting Buenos Aires. The D subway line is close by, and there are lots of places to eat in the neighborhood. If you're up for a longer walk, you can go from there to Paseo El Rosedal and other parks. I appreciated the spaciousness of the apartment (for two people) and especially the washing machine in the unit, which was easy to use. There was even detergent there for us to use. He has a drying rack, as well. There was also a coffee maker. The water tasted a bit mineral-y to us, so we opted to buy bottled water at the small store downstairs.
There were a couple minor hiccups but nothing too bad (had to flush the toilet by pulling the chain until Cristian could come by to fix it, overhead lights were out in the kitchen). Cristian was quick to respond when issues came up.