All in all the stay at Mr Florenz was pleasant. I mistakenly booked a night early and immediately notified the host. (With a standard rebook fee, I was able to correct the reservation).
Unfortunately, upon arrival to my final destination, Mr Florenz informed me that there was a strange chemical odor from a bottle left in the apartment. I asked for clarification, but then Mr Florenz became somewhat accusatory (insisting that the bottle and a hole to a kitchen rag were sustained during my stay. Rather unfortunate, and not too keen on how things played out in that regard.
That said, everything else went smoothly. Nice place to stay... but perhaps work out a handover system that protects you from accusations as such in the future.