Matias and Cande were great! My train got in really early to Retiro (7:30 AM), and Matias provided me with transportation advice, and got up early to let me in and show me around. I was able to use everything in their kitchen, have a space for my groceries, and use their washing machine which was a huge bonus since I was at the end of my trip. Had access to a bathroom right across from my room, and really enjoyed spending time with the other travelers who were staying with them as well. The location is also perfect for getting anywhere you want to go in Buenos Aires! Highly recommend.