The manager Fortunata is lovely and will meet you and take you to the apartment. Please make sure that you take bags that are easy to carry/wheel because there are a lot of steps in Praiano. You can walk to the supermarket easily, and there are some great restaurants down on the main beach.
You can rent a sunlounger for the day - we loved to hang out at La Pirata and rent a sunlounger from them on the rocks. The coffee and limoncello was amazing from there.
Another suggestion is to rent a boat and shoot up and down the coast for great swims.
Praiano is much quieter and relaxing than positano - great place to go if you want to relax. As with most of the amalfi - lots of steps!
Also, the supermarket is great - the family there will deliver food to your apartment. more