It was satisfying enough for a Pirates fan (and I am one.) The beginning drags a little (as does the middle, and end), and Jack as the main character is a little detrimental to his level of wittiness in this movie.
A lot of people dislike the new "Will and Elizabeth" replacements, but the couples are not much similar. In fact, I found the new couple a little more compelling and they're some of the better parts of the film (especially at the end).
However, they're a little underused, as is Blackbeard. There's also not much of a clear antagonist, so the conflict is also muddled up a bit.
It never really felt like a real Pirates movie to me, except for the mermaids, who are very cool.
It didn't make me laugh nearly as much as the first three. Cruz did all right, but to me, her character was a little annoying, and she and Jack never really have that much chemistry.
The score is similar to that of At World's End, but with new motifs and lovely Spanish guitar.