The appartment was rather clean although there were some details that could be fixed. It is very dark as there are only 2 windows with in the bedroom which doesnt provide much light at all and the other in the living room but it is behind a wall so the kitchen and half the living room are in darkness.
The area and the building are quiet and with a car you are 25 mins away from Sunset beach or about 45 mins to Kailua.
there are nice beaches close by or even the one just in front of the building. Groceries are 10 mins away in Laie and you also have plenty of options for take out in Kahuku and other places around.
it is well equiped with basically all the stuff you'll need so there is no issue with that and the internet access is really good.
This said I have been to 5* hotels and luxury airbnbs and also on rather basic places and I can say this appartment doesn't worth 400USD a night, wouldn't pay more that 200USD.