The concept is good as you know I have been suggesting this for years. However, as Carol stated they definitely need help with the website as most people will stop there and not look into it any further if this is all they see. Also I am curious about a "barrel"? I know some objects like tables and beach chairs will not fit into a barrel. Something square or rectangular would provide better storage.
Hopefully they will get things together to enable more success as I do believe this is something many regular island vacationers could use.