the worse thing that could happen when you host is to give your best and manteign a open communication with your guest, and try to please them as much as you can and then recieve a bad review. i had 2 more guests in this dinner that loved the experience and reviewed 5 stars. No one is equal or enjoy the same things. this guest complainded about some things that are at minimum unfair:
pork chourizo - they didn't eat pork meat, but the other guests do. There was starters for everyone tastes.
cheese - this guest complained about the size of the cheese for 5 persons, but there was cheese left in the end..
2 shrimps for person - there was more for everyone to repeat, this guest just didn't care about that.
If you accept a booking from this guests, be aware, the evaluation will not be fair.