Our host, Sandy was good and friendly, did most of the communication via whatsapp before we arrive and while we were in Taipei.
We felt the apartment is quite private as there's security guard during office hour and access card is require to your apartment inside the lift to your apartment's floor.
Overall the apartment is nice and cozy, despite is quite small in terms of common way and space. The apartment is ideally for three to four person max, especially small family. Once you are in the apartment, the space is very open, not much privacy cause everything can be seen through the open space.