My husband and I have stayed several times at Kai's B&B over the past few years and have been in the cottage as well as the main house and found it to be "our home on Maui". The rooms are very affordable for Maui, clean and comfortable; like at home there are some things that show some wear, but everything is functional. The location is in a residential neighborhood, with neighbors that have kids and pets and there is some street noise, but the grounds are tropical with lots of foilage so you don't see much and we really like the extra security and privacy the gate provides. (If you read your booking sheet before you arrive there are simple instructions as to how to open the gate and which parking spot is yours)
Depending if you are in the main house B&B rooms, you get a basket with lots of goodies (continental breakfast) that you can eat on your own schedule....no waiting on other for breakfast if you are up early. We usually ended up taking some of the snack food in our bag to the beach as we are not big breakfast eaters anyway. The kitchen in the cottage is well stocked for cooking your own meals or just heating up left overs from eating out. You can walk to several nice places within 1/2 mile.
The owners of the B&B are friendly but not intrusive. They have boogie boards, bikes, beach towels, chairs, umbrellas and snorkeling equipment free for use. We really feel at home and can stay on the island for twice as long as compared to staying at the big hotels. (If your high maintance type people you might perfer the big hotels) Rent your car from Kihei Rent a Car, they rent late model cars and jeeps, you will blend right in with thoses who live in Maui.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.