Also to note...the food & drink prices at the local stores were crazy high! If staying at one of the condos, you really need to be aware of just how much food & drink will end up costing you overall. Anyone who has been there already will obviously know this but for the first timers trying to weigh options, it's good to know.
We bought some beers & Prosecco to keep in our mini fridge and drink on the patio & our little section of the beach, and while still cheaper than buying at SCC, it was still stupid expensive.
And the availability of fresh foods may be limited on the Sister Islands of Brac and Little Cayman. You certainly won't starve but a lot of the fresh fruits, vegetables, meats, and dairy come in on a weekly supply barge, and if the weather is rough the barge won't make the trip.
That's one of the reasons we like to stay at an all-inclusive resort in the Sister Islands. On Grand Cayman there are loads of supermarkets and restaurants, but on Brac and Little your choices are limited. Plus paying for an AI in advance helps you understand your costs better, because food and liquor are expensive.