I am currently vacationing in Kauai..fabulous island, with this being our 10th year to visit. We own at Waihoi Vacation Club and agree with previous comments about Kauai Beach Club but must add, the staff is WONDERFUl there. We purchased a week at the KBC for the exchange power and great price. Favorite place for sunsets include: bar at the Beach House in Poipu and restaurants or bar at Princeville Hotel and the Happy Talk Lounge at Hanalei Bay Resort. Loved golf at Kauai Beach Lagoons, very disappointed with the Prince golf course, best deal is to sign up for a scramble which most courses offer.
I go to Kauai every year and we always rent a car. If you are only going to be in Kauai for two or three days and don't want to see the island you could stay at the Kauai Beach Club and not have to rent a car. You also might check on renting a car for the day if you are staying at the KBC as it is next to the the airport and they have a shuttle to and from the airport. You can just pick up the car at the airport and not have to pay for parking at the KBC.