We rented the entire house for a family of 13, no other choice at that time around Hanalei. The house is spacious, true beachfront (we could not swim because of the big waves, but probably depends on season)‎ and a nice garden (very nice if you spend a little time clean it). ‎The rest of the house is rather old and need renovation (this is not because of North Shore environment, just that everything including beds are old and the house seems somewhat abandoned). The bathroom upstairs (for the 3 rooms) is definitely unhealthy, you can just take a shower (although the sink does not drain well), no way you can take a bath or seat in it (we are used to travel in many condition, and this bathroom was used by young people only). The toilet 1st floor has a strange soft bowl that seems unhealthy. The master room is nice (‎including a bathroom, which is fine), there is no curtains so you will wake up early, but the view is fantastic. There is a cat living there, better to know if you have someone allergic in your group...
David replies very quickly, using very straightforward communication (some call it rude). The dishwasher in the main room did not work. Apparently it was not surprising for David, who proposed a fix (combination of buttons), although that did not work. Which was not a problem for David, who didn't reply after that, we washed by hand for 13 people the rest of the stay (the smaller dishwasher in the studio works but you have to rinse dishes before). The ‎clothes dryer in the mainroom is very old and probably does not work (we even didn't asked how to use it, we directly used the one of the studio).
The place is very nice, the view is wonderful.‎ I won't recommend to rent the mainhouse until there are some renovation. The studio is fine and can be recommended.