Very helpful hosting company - my suitcase broke at the airport and they offered for me to leave my bag there prior to check in. Unfortunately check in instructions are simply difficult to understand. There's a buzzer, a bluetooth app to deactivate lock (still unsure how this works - the cleaner was kind enough to let us in) plus physical keys. I'm not tech challenged but I admit I had a hard time understanding all of this.
Otherwise the apartment has a great view and is lovely!