If you enjoyed the original Pirates trilogy, you'll probably like this one a lot. It feels like the natural progression to the original tale, though there's very little that ties it to the fourth film.
This film still suffers from the issues that the fourth had as well by not keeping Jack Sparrow in check enough. The reason the first film was so good was because the rest of the case was equally represented.
It's a fun movie to have on in the background though. The high seas action is the same as you remember with overblown moments, just not as good as the original 3.