The only one of Marryat's books that I have ever been able to get my hands on is Children of the New Forest, his historical novel set during the English Civil war.

I would dearly like to get my hands on some of his naval stuff, because I know he lived it, and all I can say is that they would be fascinating to read because of that - he wouldn't have needed to research things in the same way as a modern author writing historical naval fiction.