The recipes are uninspired (do you really need a recipe for adding things to canned baked beans?), only vaguely lunch-y (and what do I do with 9 servings of lasagna for "lunch"?), and too large when lunch-oriented (I don't need 4 sandwiches, I need 1 or 2). Ingredients can be remarkably vague ("marinated seitan"--marinated in what? will any marinated seitan do or should I be looking for something a bit more specific?).
It looks rather like someone had a passable vegetarian cookbook and decided to try to make it fit into a lunchbox. Sadly, it's not a great vegetarian cookbook to begin with and the lunch theme falls apart very quickly.