This is a great fishing show apart from the overdramatization, which for me is a major negative.
Some drama scenes are annoying and plain unbelievable. The plot of every episode starts with a mystery man-eating monster but in the end there is no monster (duh) except for some seriously big fish. I guess this helps attracts non-fishermen to a show that would otherwise attract mostly fishermen.
On a positive note, the host is a good fisherman with excellent knowledge of the fish he targets and the ecosystems they live in. This portion of the show is by itself highly educational and enjoyable to watch.