@YYCgal This is fascinating! It’s not often you see such polarised reviews of guests.
Personally, I’m inclined towards the guest on review 1.
The host seems unclear on check-in/out times. The host saying s/he was not able “to accommodate next guest’s request for early check-in” is unprofessional at best - that has nothing to do with the outgoing guest! The guest’s response to other things seems reasonable to me, simply stating the facts and offering some advice on the bathroom. Of course, he’s retaliating but that’s understandable when you feel you’ve had an unfair bad review, right?
Review 2 is bad. I would decline a guest based on that.
But he seems to have cleaned up his act with the last 3 reviews. And at least he hasn’t just deleted his account and made a new one. Kudos to him for that.
I would give him a chance and make reference to the reviews, something like “I see from your reviews that there have been a few issues with a couple of your past stays. Please ensure that you have read and understood all my house rules! Happy to clarify if anything is in doubt.”
(Where do you the 2.5 negative reviews from, by the way? I only see 2.)