The owners here are so nice and accommodating. They are friendly and responsive to any needs. The unit itself has pretty much everything you'll need to enjoy your time on the Big Island.
My family of 4 stayed in this unit for nearly a month. The internet connection is stellar, and my husband had no problems working while there. There is an impressive selection of TV channels for the whole family. There are beach towels, chairs, and other beach items for use. They even have plenty of reusable shopping bags available for grocery runs. The yard is lovely and great for the kids to play in. The unit has a large lanai with nice table and chairs. Lots of little extras provided such as shampoo and conditioner, soap, toothpaste- so don't worry about packing those things.
The house is on a main road, and a steep section, so the road noise can be loud. If you are a light sleeper I suggest bringing a sound machine or ear plugs. Laundry isn't located in the unit. It's upstairs, but the machines are nice and there is soap available to use.
Overall, the unit is very nice and a good value.