NMA's Michael Grizzly takes a romp through Bethesda's 4th DLC, and...
Combat aside, one of the highpoints of Point Lookout are the NPCs, the ones that don't shoot you, at the least. Compared to the cardboard cut-outs most of vanilla Fallout 3 characters are, the inhabitants of Point Lookout are interesting, have some good writing and wouldn't feel out of place in one of the classic games (their lack of swamps aside).Link: Fallout 3 Point Lookout review.
Furthermore, as this add-on has an obvious focus on exploration I have to say that it doesn't disappoint - the State Park is littered with unique locations, most of which have a backstory presented in game and finding them feels really rewarding as does discovering their history, especially of the sinister Turtledove Detention Camp.
But the enjoyable exploration is marred by an ailment the original Fallout 3 suffers from - the game is confused as to when it takes place. It's two centuries since the war and yet you seem to find working power and lighting wherever you go, undisturbed corpses and buildings filled with loot that no one seemed to think of taking, even though they're right next to it, terminals that have been running for 200 years without failing... when playing, it feels more as if it was a little over a decade since the war. While in the Capital Wasteland it can be excused to a certain point, as it was ravaged by war, it's not excusable for there to be unlooted easily accessible locations in an area which didn't suffer direct nuclear destruction.