The guest house is big and has different rooms. There's one room that you might want to avoid, and that's a room in the center of the house. It has no windows, but it does still have a jacuzzi.
The air-condition is noisy, so it's better to turn it off when you go to sleep, and instead open a door or window.
The cold breakfast is quite good. The staff is extremely helpful and nice.
One of the best things with the place is that you can borrow snorkel equipment and they provide you with maps over good snorkeling places. They do also have other things that gives that little extra, a huge dvd collection, a laundry room (very nice if you have been traveling for a while) and discounts if you book tours through them.
The wifi was very reliable during my stay. I've had problems with internet connections on other islands of Hawaii.