I have mixed feelings with this hotel. First of all, it's not a hotel, it is an apartment building. It was clean and very comfortable. However, there is no daily cleaning and/or exchange of towels. At your request, they can clean and and bring you towels but keep in mind that there is no "Front Desk". You will have to write via whattsapp, or email and you need to be in your apartment for them to enter (at least is good security!). In our apartment there was no closet to hang clothes, thus everything had to be kept folded. It appears to be a space for closet, but there was no poll.
It had a small kitchen area, with a small fridge and microwave that was good to have our snacks and/or leftovers.
The area is close to Plaza de Mayo, San Telmo and Calle Florida. During the day it was easy to walk the area (although a little dirty and stinky streets). However, at night there was not many people in the streets and felt a little unsafe for me.
Another con is that you can hear everything from the street at night. Our stay included the 24, 25 and 31 of December, and we heard festivities around.
For me this is a place you can stay if you want to be out during the day, but doesn't care to go out at night, and if you have been before in Buenos Aires. For those people who want to enjoy the night life, or is your first time in Buenos Aires, this is not the place/area. A nicer area will be Palermo or Recoleta.