I had a great time with my boyfriend at Ralf's place, except for a few minor issues. The place was clean, beautiful and just as depicted in the pictures. Mathias gave us a great introduction to Buenos Aires in the beginning of the trip, and Ralf was kind enough to let us stay way past normal check-out (almost 10 hours past!) because we had a late flight out of Buenos Aires for free. The pool on the roof has great views, but be warned that it is NOT heated - so though it was great to lounge, it is not fun to get into. My boyfriend used the sauna and said it was not very hot, so I would caution against choosing this Airbnb based on building amenities, since you likely will not use them. However, it was really nice to have a landline in the apartment - we made lots of restaurant reservations with it!
The location is convenient to the supermarket, La Cocina empanadas, and lots of cafes. Most of the restaurants we wanted to go to in Palermo were about a 30 minute walk or 10 minute metro ride. We did cook one night during our stay, and though we (and I believe Mathias) thought there was olive oil in the apartment, we realized that the two nice italian bottles in the kitchen were both filled with balsamic vinegar. Not a big deal, but wish I had known before we cooked pasta! Other thing was that the wifi stopped working the last day, because the internet and phone bill wasn't paid. This happened literally in the last hour of our stay, so it didn't affect us for the most part. The internet was also quite slow, but it might have been because the internet company was gradually shutting off service... The BA4U team seem very responsive, so I'm hopeful they got the internet sorted out for guests to come.