When you flush the toilet it spills into the shower. This means fecal matter, etc will be in your shower daily.
You can’t flush the toilet with paper, which creates a hygiene issue as there’s no space for the garbage.
There is no washing machine on the premise and the host will leave you to figure it out.
Document all of the experience with photos and messages to the host. We foolishly believed it was solved based on prior reviews. It hasn’t been. Further action can only be taken with additional proof.