Many valuable tips are already given. I would only like to add a few:
1. If your listing is located in a complex where there are several neighbours close by, take each of them into confidence in advance, before starting to host. Assure them that it would be a nice experience for them also, and would not affect their peace and privacy. I have seen many cases where neighbours have objected about hosting simply because they were not informed in advance, which hurt their ego. A guest surrounded by hostile neighbours won't be a pleasant experience for the guest.
2. Be very responsive and proactive in communicating with guests, specially before they book. Provide information which you think they should have, even if they do not ask for it. Particularly, talk about negative aspects of the listing with suggestions about how to best overcome those (e.g. difficulties in locating the place). Thus the guests will have no surprises in store.
3. Many guests may not be familiar with the Airbnb concept and may expect all services and facilities of a star hotel. Make it clear in the listing what type of services are not included. If still someone insists or intimidates, react politely but firmly.
4. If you are not staying in the listed place, be there personally when they arrive, to greet them and show them around.
5. Be finicky about keeping the place thoroughly clean, including the remotest corners and niches. Possibly, many guests may not even notice it. But still make it a standard habit.