This is one of the best hotels I've ever stayed at during both domestic and foreign travels. I stayed for thirteen days, and enjoyed the entire stay. The room was large, comfortable, and well appointed. The cleanliness was excellent. I loved the long breakfast hours. They allowed me to get a relaxed start to my day. The front desk staff was super, particularly Coral, who happened to be the one I most often asked for help.
They always seemed to go the extra mile to serve their guests. For example, when the room wasn't available for cleaning because of my activities, they would put a card under the door saying that I could request a cleaning at the front desk up to 6 p.m.
One tiny thing I didn't like is that the flip-flops provided when I asked for sandals were uncomfortable.
The restaurant dinner was overpriced compared to other nearby restaurants like La Cañita, particularly wine prices. However, the restaurant probably needs to charge more because it is small. The restaurant manager's wine knowledge was terrific, and I enjoyed chatting with him.
The only drawback for me was the distance to many of the major attractions that interested me. Most were 25 to 40 minutes away by Uber.
My bottom line is that I'd stay here again and recommend it to my friends.
Thank you very much, Fierro Hotel, for making my stay in Buenos Aires very comfortable.