DRAFT a short, factual, balanced (plusses and minuses) review of her guest conduct, focusing on cleanliness, respect for house rules and communications. See review forms here. Then post it here for suggestions.
Regarding communications I might include a sentence like: “After checkout she messaged me about many many things that she said didn’t work and that were wrong with the property. Sending complaints after she’d left gave me no opportunity to fix them but the real point was that our manager could not validate any of them. Do not recommend.”
EDIT TO ADD: Earlier you wrote:
And that when you overseer said things were working fine, that that:
Is there something factual that you could write instead of ‘very upset’ or ‘really set her off’?
Was it something like we heard here recently 'came to my house, blocked my driveway, videotaped while screaming ‘I’ll get you my pretty and your little dog too!’