I agree with Annette, you do the best you can and build up from there. I wouldn't necessarily worry about super host status in the beginning, just get good reviews. In my experience, people read them all anyway, and if you have more good ones than bad, and you are professional in your responses to the bad ones, people will understand. Reasonable people have all dealt with the unreasonable ones before, so they will get it.
Expectations is a big thing. Don't over-promise, and when they get there, have a few little extra touches to surprise them, like flowers, treats, so they are pleasantly surprised. Also, check with them to make sure they understand the house rules and how things work. If they are new to Airbnb, and ask questions that indicate that, I go through the process with them, even via email, to make sure they understand so they don't blame me when unexpected things happen. It never hurts to educate people in advance, to make things go smoother. Explain in detail if you need to. Tell them where to find the FAQ's, and as a few questions to find out if they have read your listing and understand it and your house rules. If there's anything tricky about your listing, make sure to discuss it in advance. Don't give up, the positives outweigh the negatives, but like all beginnings, there are a few rough spots.