We stayed in Treasure Cay, Bahamas about 5 yrs ago. You fly into Abaco and can drive to Treasure Cay.
The place you are holding is on Guana Cay , Bahamas. Pretty sure you fly into Abaco and ferry over.
We took the ferry over to Guana and its wonderful. It looks like its right next to "Nippers Bar" which is a great place, but can get quiet crowded but a fun place. We saw these condos that were just built next to Nippers. Not sure who the developer or mgt is.
All three areas, Abaco, Treasure Cay and Guana are beatiful and great snorkling. Very quiet and not much to do, Guana actually is very quaint and I believe on Guana you can only rent golf carts to get around. I may be wrong on that. Most people going to these out islands rent boats vs cars and travel to other small close by islands or use the ferry.
I would do it again for a week. But if you need Tv, lots of entertainment, lots of shoppinging this is not your island. But for layed back, beautiful, romantic time, go for it.! But being next to Nippers bar would give you nightly entertainment.
We went in May and the weather was fantastic, 80- 90's, check weather as I think Oct to Mar can be quite a bit cooler.
If I can find the site I used and forum I will send it to you.