I travelled with my daughter of 13 and had an excellent stay at Palermo Uno. We've spent a lot of time in Buenos Aires and we stayed both in hotels and apartments and this apartment is by far the best we ever stayed in. We booked transfer from the airport since its a caos at the airport and we were recived by Marcelo at the apartment who explained everything to us. The place is exactly as it looks like in the pictures, but the sunset is even more amazing than in pictures, it's really breathtaking, we couldn't get enough of it! The apartment is very well equipped and has for example towels to use by the pool, a coffee machine, olive oil and balsamic vinager, teabags, mate cocido, kitchen towel and cleanings stuff, things you don't always find at rental apartments.
We loved the pool that we used every day and also the gym that we used several times, the view makes it a lot easier to work out!
Palermo soho is our favorite area in Buenos Aires, it's close to all the nice shops and restaurants and to Bosques de Palermo were ALL porteños are running and exercising. Also very close to metro and all important buslines, taxi is cheap and you easily get one from the street. Highly recommend this amazing apartment!