I must say I'm underwhelmed. With rare exception I don't think there have been many good pirate games, especially of the "Action/Adventure" genere which is mentioned here. A lot could be done with the whole concept of pirates as a theme for gaming, but it usually seems to be an idea from lazy developers hoping to sell a game on the "OMG Pirates" appeal. The recent Disney movies actually haven't helped much either.
One of the big problems is that pirates as presented in the media, especially nowadays, oftentimes have me wanting to beat my head bloody on a brick wall. For some messed up reason people have gotten it into their heads that being a pirate is about freedom, and these guys are at worst "dashing rogues" who rarely do anything all that evil, or at least not that you ever see in the scope of a storyline. I mean these guys are generally murdering robbers, who hardly leave people alive and sail away. I mean I "get" where this idea comes from, but the problem is that in fiction such situations are presented as an exception rather than the rule, and when every single product focusing on pirates features that kind of attitude at the forefront, I think that's an issue.
Hard to accomplish I guess, but what they basically need is "Grand Theft Auto" on the high seas. Then you'll have a pirate game worth playing.
Also I don't know what it is, but the whole "pirate classes" thing, kind of bugged me, maybe it was sort of like how the rifle one of them was holding seemed like it belonged in a western a couple hundred years later, rather than in the hands of a pirate.