Michael is not distinguish being a Air BnB host and a roommate. As it was said before, the shower need a hard cleaning (remove all the limestone +seals) and a real door would be preferable than a shower curtain. The kitchen was alright in general. I had to make my own bed. On my last day he invited a girl, they had a fun evening (no problem with that) but after they had noisy sex all night long and it woke me up at 2am, 5am and 7am. Beside preventing me from sleeping (I was the room just aside with a thin wall) I felt really awkward....
I would not do it with a guest friend or family member, I would even less do it when the guest is actually paying to stay the night. It is a simple matter of politeness and respect.
I had wonderfull experience with airbnb guests previously so that would not be fair to their efforts to recommend this place.