The first question you have to ask yourself is whether you think it's worth lawyering up. Did you roll an ankle or get seriously hurt due to some defect of the property? Flyertalk can armchair quarterback it for you but at the end of the day you are going to want to get some actual legal counsel.

I stayed in an Airbnb three weeks ago that I felt was pretty unsafe. It was a super-cool place and we had a nice stay, but I made sure to point out to my kids where they needed to be super careful due to some missing hand rails and an area with some kind of homebrew construction. The place was not in the U.S. The whole Airbnb model still has some serious issues that have yet to be resolved, and safety is definitely one of them.