If you are going to Positano, we loved our hotel called Il San Pietro. It is not in downtown Positano....it is a 10 minute car ride, and the hotel provides a shuttle. Positano can be very crowded and very touristy, so we really enjoyed being away from it.
Look how spectacular it is from the photo below. Built entirely into a cliff. See the pool toward the top? The restaurant is under there. See the tennis court at the bottom? You can either take a lot of stairs or an elevator.
This unique hotel opened in 1970 and has remained in the family ever since. The upstairs restaurant has a Michelin star, the downstairs restaurant is outside on the water.
The Amalfi coast is beautiful, but can be crowded. Il San Pietro was a beautiful place to take it in while being away from the crowds.