Atmosphere, location, kindness.
Not always reception personnel response.
This is a nice 5 star hotel on a quiet, beautiful street in Buenos Aires. The junior suite that I stayed in was large and comfortable. I enjoyed in particular a six course tasting menu, complete with wines, at the hotel restaurant, El Sud.
The separate shower in the otherwise nicely appointed bathroom was way too small. Also, the wi-fi was weak and sporadic to the point of being almost useless.