First the pros - The location is great! I love Haiku. This place is walking distance to the best restaurants on the island. Maui Kombucha, The Greek Oven and Nuka can't be missed as well as yoga and fitness studios, massage, chiropractic, mountain biking rentals and shops. It's also a great location to get to all the less touristy and beautiful parts of the island. If I came back, this is the area I'd stay in again. Getting to the house is easy and check in was simple. The place itself is simple and small, but comfy enough for a family of 3 or 4. Loved the gas stove and great water pressure in the shower. Also great to have a washer and dryer to use on our longer stay. Also we didn't need it, but there is a baby crib there. It's also pretty quiet for an in-town location. As long as your neighbors in the hale next door are quiet, you should be fine. Ours were.
The Cons and Neutrals - The beds were hard and springy, making it difficult to sleep, especially with someone else in the bed. If you crash easy, this may not bother you. The place is a bit dusty, something that could be fixed immeditaly with a more comprehensive cleaning. We tend to cook in a lot with a kiddo, so the kitchen tools were lacking for us. The knives were too dull to use and the cookware was mostly scratched up teflon. We bought a good knife and cast iron pan at Target to use while we were there that fixed the problem for us and just paid to ship them home. There was only one beach towel (we left one, so now two) and no beach toys for kids, but you can buy some for cheap at the store. There is a cooler and two beach chairs at the house.
For me, this would be a five star stay with better beds, new kitchen supplies and a good thorough cleaning.