As « his » name tells, « Pick A Flat » is not an private individual but a « little business » aiming at taking profit of the Airbnb system.
It entails a few facts :
The flat is set in a builing (almost) in ruin (lower purchase price for « Pick A Flat »)
Cleaning is Indeed done but badly since by people who don’t care (every corner is dirty)
Nothing that is not required is not there (not even salt)
Light bulbs are not replaced
The Policy that Pick A Flat set in place is very harsh (detector of noise, threat to call the police from the outset)
As a conclusion, I did not like it, I think that it is a perversion of the Airnb spirit.