I had been diving early in the week on the Fiji Aggressor and therefore had many reefs to compare these with. The reefs around NananuiRa were every bit as good as the others. Much of island scrubby and scruffy. Litter in populated areas. Merchants in Nadi Town can be aggressive and rude.
Many homes ramshackle.
Bathrooms have showers with lots of hot water. Goes to less interesting closer sites with poorer viz so can get back early. Dan Grenier's Crystal Divers is quite different. The biggest dive boat now operating in the Maldives, the Pollux, is also bigger than any boat in the Maldivian navy. And you'll find plenty of room to stroll around.