My wife and I spent the first week of our honeymoon at the Residence Hotel. It was truly a magnificent experience. Staff was friendly, and did everything possible to make our stay a good one. We never felt like a burden to them, and they were more than happy to arrange transport from the airport to the hotel, make dinner reservations for us while we were out on the beach, and seemingly anything else that we could have wanted. Francesco and Vittorio at the front desk were excellent.
We had a sea view room with a balcony and the views were stunning. The rooms were immaculate and were attended to regularly. A nice touch was having our sheets turned down at the end of the day before bed time. Breakfast was excellent, offering both North American and Italian items, served on a terrace with sea views.
The hotel is located in the centre of the city, close to the beach, restaurants, and ferries. The beaches are pebbly, but there are loungers for rent along the shore. Staying in Amalfi is a great choice as well, as it is relatively close to all other attractions along the coast (Positano, Capri, Sorrento, etc.)