We loved our stay at this apartment! Even though it's managed by a company and all the apartments in the building are the same (less authentic), the place is exactly as advertised and the photos are very accurate.
The apartment is located in the middle of Barrio Alto (super central and accessible!), with tons of cobble stone streets with bars and people dining, drinking or partying; but you can barely hear anything happening in the street!
Do bear in mind that there is only one bathroom, which needs to be accessed through the master bedroom. Other than that, it's super clean, well maintained, well decorated and super responsive team! I would highly recommend :)