@Laura2592 On the occasions when I've had a not-so-great guest, I've looked back to the original message thread to see if there were any clues that I missed. Most of them had good reviews, not all of them were bad communicators, but I found that their original requests raised some questions that I wished I'd asked before accepting. Almost invariably, I'd notice a certain aloofness that wasn't befitting to the intimacy of sharing a home, but I figured it's no big deal to put up with that for a few days.
Eventually, I started feeling burned out from the stress of sharing my home with people who weren't a good fit, so I started asking a lot more questions and really pressing to make sure people had fully read and understood the listing. The average quality of guests skyrocketed - in 2019 I would say that all the people who came were ones I would gladly welcome back - but my acceptance rate went down to about 68%. Of all my years of hosting, this was the one I enjoyed most; I've never regretted a decline.
I've never found most reviews to be very helpful as a predictor of the experience - especially now that more and more listings are managed by hosts who never have contact with the guests. The most effective thing I've ever done to get better results was to change the communication and ask more questions.