Our stay at Kauai Beach Resort (KBR) was great, and although we never met our host Molly - we didn't need to - the accommodation is a privately owned unit within a first class resort!!!! We checked in like all the other guests and had full use of all the resort facilities in an idyllic setting - multiple swimming pools and dining areas, one with live music most nights & there were 2 weddings down on the beach in the week we stayed - really is a BEAUTIFUL spot. Having said all of the above my one piece of advice would be "book a car rental BEFORE you arrive!!!!!"
There is a free shuttle from and to the Lihue airport and also to a local shopping centre (crap), but for such a small island there is so much to do and see and we were starting to get cabin fever as we had to wait 3 days for a rental car (limited number on the island or maybe our stay was in peak season???