The house was nice, but the host has issues.
Upon arrival we found that one of the smoke detectors was not maintained properly, and was making periodic chirps due to a low battery. Since that noise was interrupting our sleep, we removed the battery. Instead of apologizing for not maintaining his smoke detectors, the host tried to charge us more money to repair the "damage" that we did by removing that battery. We definitely did not damage anything. When he finally realized that, he retracted the charge, but that whole interaction left us with a bad impression.