I could only give 3 stars. The over-the-water bungalows are over a man made incove so no coral, and water sports won’t provide mask and snorkel even if you offer to pay. The area for non-motorized water sports is quite small and the quantum of equipment quite limited. The private boat hire is 50%-100% higher than where we stayed the prior week in Vanua Levu. When we arrived and onboarded, the computers were out, so we didn’t even learn about the adults only pool and hot tub on the far end of the horseshoe shaped resort until our second to last day. The gym is small with only one bike, one working treadmill out of two, one rower and 2 benches. The non-adult-only swim up bar is understaffed with one poor employee having to wait on usually 5+ guests at a time. And due to their own internal computer errors we were double billed for airport transfers although through meaningful pain as our transfer back to Nandi was waiting we managed to fix this.
All that said - the fish bar is excellent, once you find your way to the adult pool it is great and the pool side food there is really good (better than at the general pools), the breakfast is well organized, and the room cleaning staff is excellent. The spa is well run with very friendly staff, and the 2x/week outside buffet with grilled fish and cava ceremony is tasty.
If you like pre-designed resort hotels, you will likely enjoy this Marriott; but to be honest, we felt like we could be anywhere, not a fully Fiji experience.