Juan's apartment is perfect for a couple or a single person. It is actually a large studio, as opposed to a one bedroom. It is sparking clean and had everything we needed. The kitchen is small but we never planned to do any cooking other than breakfast, for which it was fine. Toaster, Kettle, Nespresso machine, small stove, fridge...perfect for our needs. There is a huge grocery store right next door for anything and everything you may need.
The building is modern, clean, and very safe, with 24hr security. It's in a great neighborhood. Extremely walkable to many sights and restaurants. Beautiful pool for those hot Buenos Aires summer days. We also used the laundry facilities, which was very convenient. Juan was very helpful and was available whenever we had questions. We would definitely stay there again next time we're in BA.