The hotel grounds are fabulous. There is a beautiful lagoon in the middle of the buildings. It is located on the sunny side of Kauai, and it doesn't rain half as much as on the North Shore. Poipu Beach is located right in front of the hotel, but the beach in front of the Sheraton in less rocky and better for surf.
The one thing we didn't like about the hotel is that they only serve dinner in their restaurant from Thursday to Saturday. Every other night you have to go off the grounds and find a restaurant or go to the marketplace near the lobby and pick up something.
Kauai is a great island if you love the beach. There are activities to do, such as tours, but there are not half as many as on Oahu. Shopping near the hotel is limited. A rental car is a definitely a MUST. But as far as the hotel goes, all of the staff is ABSOLUTELY friendly. The rooms are great, too. We had four people with us and always felt comfortable.