I prefer it when its run by a company, rather than someone renting out their apartment (I've stayed a coupleof times where they moved out of their home (once to stay with parents next door, not sure about the other)). I don't really see any advantage (for the person staying). The company ran ones are tidier, have cleaners they can arrange to come out and clean when required (like a hotel's daily clean), etc.

I use airbnb for cheap accomodation and because I can see exactly what the apartment will look like. I don't do it to talk to someone when checking in for an extra 10 minutes.