We stayed here a couple of years ago and returned to Albergo Pompei Valley with our kids this time. We had another awesome stay! The kids had a great time and didn't want to leave when the time came. The service was impeccable, the rooms very clean and the staff was like family. Our stay was 5 nights and the hotel was a great jumping off point for all the sites from Caserta to Paestum. The price is incredibly reasonable, especially considering the quality of the hotel.
It is located a quick drive from the ruins of Pompei (if it takes you more than 10 minutes, you're going the wrong way!) but down a quiet street away from the busy city center.
This is a wonderful place to stay and I have a feeling we'll be back, yet again!