We stayed in Modena, Italy, as part of our honeymoon, and chose to stay with a "Superhost."
Airbnb picks "Superhosts" based on just four criteria: They need to have had at least 10 people stay in their place over the past year, they need a 4.8 rating or higher from at least 50% of the people who stay in their place, they need zero cancellations over the last year, and they need to respond to 90% of new messages within 24 hours.
In other words, being a Superhost doesn't speak to the quality of the apartment. Our Modena apartment was easily our least favorite accommodation during our honeymoon: It was more flights of stairs than advertised, the apartment wasn't very clean, had no soap, shampoo, or cleaning tools like paper towels, and the apartment smelled like sulfur at times (more on that later).