Reading the review just now, were they not aware that it was indeed the flat you usually live in yourself? First time Airbnb-guests maybe?!
Some people don't like to be reminded of that I guess, maybe you can work with that: make sure there is a space for them to hang their clothes in the wardrobe (even if some of your things are in there), no personal things like pictures/mail/toiletries/etc in plain sight, that sort of things.
It's different with every guest though... We once stayed somewhere where the girl normally lived herzelf, she litterally removed everything from the flat: she left with 2 big suitcases, empty fridge, the whole pantry empty.... She thought she was doing a good thing, but we wouldn't have been that uncomfortable with some personal items! Now we were in the position that she left pads for the coffee machine, but no milk!