I used a mug the day of check in - and the next day, after our room was refreshed, I reached for the upside down mug (indicating it was a new/fresh one), and upon closer inspection, it still had tea stains/smells from the previous day, meaning they do not clean the mugs, and just rinse and put it back. Kind of gross considering I don't know whether they've washed it properly since the last guests at all. I have also fallen ill, which may or may not be due to this.