I have bought several of the packs for the game, but I don't play the Pirates game at all. I run a Freeport campaign, and discovered that the ships make wonderful miniatures for ocean battles between ships or ships and monsters. They fit nicely on a battlemap, and are a lot less expensive than metal or wooden miniatures that I've seen.
My one complaint is that once in a while, the holes for the masts seem to not be cut big enough. I occasionally snap a mast in half trying to put it onto the deck. Otherwise, for my use I really enjoy having them.