Aniva is a great host and the ladies that help her are lovely. The breakfast is very nice, the rooms clean and it's nice and close to Apia. The beds were a little hard for my taste but not terribly so, the shower is great and the pool is a delight in the heat, even though it's over-chlorinated.
Definitely pay the extra for A/C (it's a must for sleeping in the heat) and I would recommend paying in advance at the quoted price as there is a small discrepancy in the exchange rate if paying when you arrive.
Overall a great B&B style accommodation that gives a true Samoan flavour experience :)