Just stayed for a week over Christmas with my family of four, my brother's family of three, and my parents. The house was absolutely wonderful. The set up was perfect for us: 3 bedrooms in the main upstairs section with large open kitchen/dining room/living room. Then my brother and his wife and daughter stayed in the two bedroom apartment downstairs (with it's own kitchen/living area). And my parents stayed in the one bedroom apartment. Everyone had their own space but could come together upstairs--either inside or on the lanai. And as is described on the website, the house feels truly private because of all the lush vegetation around it. The kitchen is great and has everything we needed--and we did a fair amount of cooking there. The house really has everything, included two washer/dryers. There are boogie boards, beach chairs, umbrellas and wagons to cart everything to the beach, which is a very short walk down a quiet street. And it is a lovely, quiet neighborhood (other than the roosters--welcome to Kauai :) )
Hanalei is a lovely town with a great beach. Surf not too heavy for little kids, but people are also out taking surfing lessons.
The little downtown area is also walking distance through the neighborhood (a little too far for my 82 year mother to walk, but easy for the rest of us). We'd walk to get coffee and pastries in the morning.
What else to say about the house? It does rain at times on Kauai and the house was a wonderful place to hang out and play games on the lanai with some tropical rain coming down. Plenty of room for us all to hang out in the evening and talk or watch a movie. Wifi works great.
We didn't have any problems with the house other than a moment when I couldn't figure out how to put the keys back in the lock box, so I called Ken, the maintenance guy, who answered immediately and helped me out.
Marney was lovely in our email exchanges. The check-in and out was easy as could be.
The whole experience was really great.