I'd be surprised if this is still around in 3 years. The things you mentioned are the first that came to my mind. Plus, there'll probably be high churn making i

I'd be surprised if this is still around in 3 years. The things you mentioned are the first that came to my mind. Plus, there'll probably be high churn making it even worse for hosts because it'll probably mainly appeal to people caught in a city at short notice, and probably short term in that case.