High Replay Values! Outstanding gameplay elements!
Like other reviewers stated, this sandbox exclusive is a must buy for every PS3 owner who loves an action and fast-paced game.
InFamous use comic books storytelling elements to evolve the plot, which is rather simple, but compelling (a few homages included and well placed).
The core gameplay is simple, and there are various subsystems available to master. The Karma System, a meter that measures your good or evil actions during the course of the game, is interesting because it directly affects the plot and gameplay.
The side quests are fun, and you will spent a lot of time playing them.
There are always plenty of things to do, and that's what makes me come back (and perhaps, make other players and you) to play Infamous again and again.
The visuals aren't stunning compared with other games, but they convey the necessary to depict the world of the game.
A game is not made only by its visuals, but by the combination of all of its aspects (gameplay, sound, effects, visual, story) and InFamous does it surprisingly well.