This is a difficult review to write, because the property is good and the host seems like a decent man. I only have 1500 characters here, so I'll try to be succinct and honest.
It seems there is a discrepancy between the VRBO and Abritel listing platforms. Abritel appears to be the European listing platform for hosts, but US guests access rentals via the VRBO platform.
On VRBO nothing in the "House Rules" or "Important Information" states renters are responsible for cleaning before departure. I rent 10-20 short-term rentals a year and they've always included cleaning. As my check out approached, I was told that I should schedule a walk-through with the host's assistant. This seemed unusual, but I contacted her. She wasn't available for the day I proposed and I had to leave for work early on the other day. She said she contacted the owner and I could just leave the key, which I did.
Later, the host sent an angry letter because I'd not cleaned the place. He claims it clearly states that on the Arbitrel site. I've checked all over the listing for this unit on VRBO and there's nothing stating the renter must clean it before check-out (this might explain why the property wasn't very clean when I arrived). He then charged my card for $195, saying it would take 6hrs to clean this 258sq ft/24sq m unit(!)
The host seems decent and the unit is nice. But if you're a US-based VRBO renter, be aware that the rules you see aren't the rules he enforces. I hope he addresses this.