Benjl , brochures like surf board ads only say the place is good beautiful and everything you would want.
I often check Tripadvisor about any hotel, resort etc I am thinking about.
I know from travel i Fiji the beaches around Lautoka are pretty crap and the hotels are also not that high end either. Trip advisor showed quite a lot of complaints re attitude of staff and general facilities. They did mention the place is moderately clean.
Remember travel gents get free trips to review places but in the end they get their money from giving you a product!
I could be wrong about the Anchorage, but it is in my opinion a pretty daggy end of town.
I would think too that if your partner was dissatisfied with Bali, remember that Fiji is still a third world country outside the resorts. and the islands are where the seas, beaches and friendliness of the Fijian people is at their best.
Remember too that Fiji has had a number of military coups to change government, it usually doesn't interfere with tourists as they are pretty much the sole source of income to the country.
The Fijian Indians however seem to think every tourist is a potential cash sheep ( as opposed to a cash cow) and need to be fleeced.
Have your scam radar on, I'm used to Bali scams but the scams in Fiji leave Bali scams for dead.
I really hope I haven't made it feel to nasty , but if it is better than I have painted then all is well

I had a look at Google earth and you are right on the mouth river with a black sand beach and a bit removed from town so it is likely my picture is not quite applicable

I've taken up troll hunting just for fun, instead of a rifle I'll just use a pun! 冲浪爷爷