Shouldn't the general quality of the listing already be apparent from the ratings?
I'm always looking for apartments with a view. That is why I am starting a startup that will help locate these:
https://nothingless.github.io/
I will also list if an apartment has a table. Because I need one to work with my laptop on it.
What are other HNers looking for in an apartment that is not easy to find via the standard filters?