I've stayed at this hotel before, many years ago, on business trips. But I found it well-maintained, updated, and in good style. The health club is very well-equipped. It is adjacent to outdoor and indoor pool areas, and the spa has great steam room, sauna, and well-equipped dressing room in case your flight departs late or your room isn't ready. We stayed on an executive floor, and the room was recently updated and refurbished in tasteful and elegant furnishings.
The hotel is within walking distance of the great "Avenida Florida" shopping street, and you can easily walk to the Ricoletta District. Although most tourists don't do so, a walk through the train stations and markets across the Plaza St. Martin from the hotel is an interesting way to connect with the general Buenos Aires population -- there you will find a 1930s-style grand restaurant in the train station with incredible architecture.