If this place is available for your dates, book now. It's a great value for the best building in Palermo (one of the best neighborhoods in Buenos Aires).
Marcelo is like a dedicated guest manager and was always available for anything I needed. The place has an amazing sunset-facing view, which is worth it alone. I spent a week here working remotely and the internet was fine. The room is clear, well-designed, well-equipped and stocked (international power converters, etc.). I thoroughly enjoyed my stay here and hope to be again soon.