My wife and I had a wonderful experience here, and it was the perfect place from which to experience Buenos Aires. Also, my wife was happy to discover the apartment had a hair dryer and iron.
The neighborhood of Palermo is the best neighborhood to have as a home base in BsAs. In fact, the neighborhood has only has one drawback... since it has everything in it (great bars and clubs, fashionable shopping, good restaurants) it would be easy to never leave it and miss out on the rest of the city.
There is a small grocery store across the street, a larger one a few blocks away, and everything about the apartment feels high quality. You can't go wrong staying here during your trip.