Overall this place was great - very stylish space, location could not have been better, very clean, 24/7 doorman. It should be noted that the building is old and does not have AC, I found it to be warm and I stayed in March. They did not provide a fan (we went out and bought one) so if you get too warm easily I'd recommend another place unless they get fans.
We were able to What'sApp directly with the company that manages this property. Overall this was very useful, however the company made us move rooms midway through our stay and did not give us proper notice or ask our permission as we would have rather not had to move rooms. They did provide a free breakfast and bottle of wine to compensate us for the inconvenience.
For the price I definitely recommend this place. Our apartment looked out on Plaza Rio De Janeiro which was beautiful. About half of the restaurants, bars, and activities that we wanted to go to were in walking distance of the neighborhood which made it very easy to fit more into a day. Thanks Deco!