My husband and I stayed at Hallor Hale with our 20-something daughter, son and future daughter-in-law and it was fabulous. We had plenty of room to spread out and the beach was a 5-10 minute walk down the road (you could also drive down and park if you had a lot of beach gear); the entrance is a little hidden, so don't be afraid to go down some of those alleyways that aren't marked "private" to see if there's an entrance.
The house has a beautiful outdoor deck for drinking your coffee and watching the sun come up over the mountains. It was well equipped in the kitchen and bathroom, everything was clean and inviting, and our local property manager was very responsive when we had questions.
Our view was fantastic with the mountains in the background and lots of exotic birds singing to us in the mornings. We went in mid-March, and even with spring break, our beach was quiet. The house has a lot of equipment for the beach too (chairs, bucket and shovels, snorkeling equipment, boogie board, coolers, umbrellas, noodles, etc.) -- definitely take advantage of the snorkeling equipment because the snorkeling at Tunnels Beach was amazing. We saw lots of beautiful fish and rock formations. I wouldn't recommend renting bikes to keep at the house as there are no nearby bike paths and the roadway is very narrow with lots of sharp curves that you can't see around.
The nearest town is Hanalei, about a 15 minute drive from our house. There was a small grocery store there with most of the basics, but if you wanted a grocery store with a greater variety, you need to drive to Princeville, which is about 25-30 minutes away.
Also lots of good restaurants and cute shops in Hanalei, as well as an outstanding kayaking/paddleboard business where you could paddle up or down the river toward the ocean or into a wildlife refuge. Absolutely fabulous and even a beginner can do it.
Be aware that this house is located on the far northern side of the island and even though the distance from the airport to the house isn't far in miles, it takes an hour and a half to get there from Lihue, because of the winding, narrow coastal roads (with beautiful views) you take, so you'll definitely want to rent a car. This is what made it so tranquil though. We were close to Hanalei, which is touristy, but we felt more like locals because we were in a somewhat "rural" area, close to Haena State Park.
Loved every minute of it and were sad to leave.