Very nice apartment, well situated on the quiet side of an apart-hotel building. A short walk from Puerto Madero shops and restaurants.
Two things to note for a longer-term stay: the windows open up all the way, which may be a dangerous temptation for young kids; and water from the shower frequently overflows onto the floor, so you'll need those extra towels.
Otherwise, a well-lit, well-located place. Cleaning service was excellent. Definitely worth a visit.