Several taxi drivers, Uber drivers and locals working at shops nearby are positive that the apartment is located in Leme, not in Copacabana; so even if the post code is classed as Copacabana, be aware that it is at best at the border with Leme, if not in Leme itself, since that's how the locals identify it. That's not a problem in itself, since Leme is a nice area too (easy access to beaches, shops, etc.); but then the price should be set accordingly, as, of course, it's not the same as being at the centre of Copacabana.
Apart from that we rate the apartment as being a bit noisier than we expected, smaller than we expected, and not as clean as it should be.