That is one of the most funny review I ever had, showing the alienation of these guests. But let's see why!
The "high price" that they paid is 23 euros per person per night in high season in the center of Rome.
The flat was of my gran parents, and I wanted to preserve the forniture, and it's written in the listing: so why to book a vintage flat if you don't like vintage?
As written in the listing, there is not air conditioner, so if you were looking for that, why rent my flat?
We are in the center of Rome, not in the historical center of course (for 23 euros!) but if you wanted to be in the historical center and not at 30 minutes walking from the Colosseum and 10 minutes (for normal people, not children) from the metro like I am, and pay of course a lot more, why to book my flat?
There are 3 supermarkets close to the house and the area is full of everything you need.
He never told me anything about the signs in the house. Yes, there are to prevent problems and because my house has rules to follow as a guest, or it's better that you stay at your house. Of course I don't "incite" to eat vegan but I advertise my vegan map that could be useful to open minded people (that's was not obviously the case).
And... also if there are the signs... they didn't follow them! How rebel was that! They didn't clean the house after use and they left for many hours all the windows opened at the first floor, not telling me that they left the house as I asked! So rebel, wow!
Pretty meaningful that, checking his reviews, he tried to be host himself, but he stopped because of bad reviews, so knowing nothing about hospitality.
I really suggest modern impersonal hotel in the center of town, 100 euros each for night and forget Airbnb!