I stayed at CasaCalma in Buenos Aires for two weeks in October 2018 and was very pleased with every part of my stay.
The hotel is relatively small and inconspicous, which allows the staff to give its guests more personal attention. The rooms are spacious and very clean with a nice jacuzzi. The breakfast buffeet is excellent with home made bread, eggs/omellettes made to the guests’ wishes as well as jam, ham, cereals, etc. The location is also perfect, with most of BA’s central spots within easy walking distance.
I have stayed in various hotels in Buenos Aires, including some better known and more expensive business hotels, but I would now choose this over any of these. In large part this is thanks to the wonderful, kind and attentive staff. It is both easy and welcome to make personal requests, and the staff always went out of their way to make my stay as nice as possible.
I can therefore highly recommend this hotel to anyone visiting Buenos Aires, whether you’re going to this beautiful city for business or holiday! But make sure to book early since it’s a small hotel and is often fully booked.