I looked into them for a charter on St. Martin after going with the Moorings there (and BVI in the past). They had some restrictions that I didn't like - had to spend the first night at the dock, had to refuel before returning the boat (like Sunsail it seems).

They were also located inside the Simpson bay lagoon which means that you needed to time your ins and outs to the bridge openings (not relevant for BVI I know).

We did end up anchored next to one at St. Barts. Nice looking cat except for the tacky www.DREAMYACHTCHARTERS.COM emblazoned across the hulls.

All in all, it didn't appeal to me but I have no other direct experience. Ended up going with The Moorings again and have nothing but good things to say about them.

Tom