Yes I was recently in St Maarten. There are no rules. Other than don't fly close to the airport.
No hassles at the airports, I carry my Mavic with the extra batteries and all the accessories that fit into the Mavic fly more bag. Which I put into my carry on.
In fact one day I was over 500 feet, since I didn't get any warnings I didn't realize how high it was, because I was absorbed in the beautiful video. I did bring it to 400 feet after realizing how high it was.
I also was able to get much better distance, since there is apparently less interference.
With the clear blue water and all different boats and beaches. Plus the sun is bright most of the time helping to create beautiful scenic shots.
You are in for a treat, enjoy.