The best thing about the Royal Mauian is the location. It has a terrific ocean view, and we could see turtles near the shoreline in the mornings and evenings from our lanai. There are beaches just a short walk to the north and to the south, and they are both nice and not crowded. We especially liked the beach to the south which had shade from palm trees in the morning. The reef between the two beaches apparently has decent snorkeling judging by the number of snorkelers. We saw turtles swimming within a few feet of us on most days. The view of the sunset is spectacular and many people come out to the park just north of the property to watch it every night. The grounds are very well maintained and the place has a nice relaxed feel to it. We enjoyed the pool as well.
Across the street there is almost everything you need for a fun vacation. There is an organic grocery store, several nice shops for beachwear, a place to rent snorkel/boogie board/umbrella etc., and several decent places to eat. There is a terrific beach for surfing (and surf lessons) about a mile north (we liked Maui Waveriders).
The unit itself (307) is modest but well maintained. Nothing fancy but very comfortable and well equipped. If you are in the kitchen, master bedroom, or living room you have a clear view of the ocean through the glass sliding doors that lead out to the lanai. We enjoyed using the grills on the rooftop a few times. The sliding screen doors need some attention, and the lighting needs to be switched to LEDs, but otherwise it is a perfectly fine unit.