It's probably a good thing that you can't wander very far off the narrow path, otherwise you would probably get lost. From a technical standpoint, levels look good. At the same time, there's a noticeable lack of variety, so you'll feel like you're going in circles throughout most of your ten-hour adventure. Subway tunnels, debris-covered streets... name the concrete-covered environment and you'll find it here.
Despite it's deficiencies, Legendary has its bright points. Character models look pretty good and the monsters look excellent. There are also some really nice special effects going on in each level that help to sell the idea that the world is magically going to pot. Enemies die with a satisfying puff of energy and there's lots of debris and dust around you. The downside to the effects is the slowdown they cause, particularly when there are a lot of them on screen.
Both the voicework and background music are passable. I've heard better, but I've also heard worse. The soundtrack is composed mostly of guitar riffs and other rock sounds that kick up a few seconds before the action.