This is an amazing place to stay for you and a few friends. Don't bother bringing beach towels or other gear, as the house has a lot of beach gear for you to use, since the beach is your back yard! The closest town (Hanalei) is about a 10-15 min drive away, where you can stock up - my party and I cooked breakfast every morning and dinner a few times as well, so the kitchen is great. Lots of seating, airy. There's 3 beds, but extra big couches and an air mattress can definitely work here. I was in contact with Joanne, who offered other services like getting groceries ready for our arrival, contact info for tours/activities (we didn't take advantage of this). It's 40 mins to 1 hour away from Lihue (Airport), and the complete opposite side away from Waimea Canyon. If you're looking to do more down there, I would say maybe some place else, but we didn't mind the drive for the couple of times we went to the South Shore.
Amazing place, highly recommend. I'll definitely be back!