Pros: healthy food, eco-friendly business
In the interest of full disclosure, my sister runs PeaceMeals.
That being said, I honestly like the service. PeaceMeals provides the option of either delivering a weekly meal plan and recipes, or also shipping you a box with all the necessary ingredients for those meals. Personally I prefer just the recipes and meal plan, because it gives me more leeway. The boxes provide a week's worth of meals for one person - 7 each of breakfast, lunch, and dinner.
Each week there are two new menus, a basic and a premium, which has more protein and fruits/veggies and such. You can request some recipes from each plan for any given week, which helps avoid getting stuck with a food you don't like.
So what I do is choose my 4 recipes in a given week, then go to the farmer's market and get as many ingredients there as possible. The recipes are always healthy, and often things I wouldn't think to try on my own. The main reason I like PeaceMeals is that it gets me trying new, healthy foods.
As for the company itself, they use biodiesel to get to the store to buy the ingredients, and buy carbon credits to offset the emissions associated with shipping the boxes of food (if you order a box and not just recipes). That's very cool. You can get the recipes and meal plans for $15 per week, or the boxes of ingredients for $40-60 per week. For a week's worth of food that's a good value, and I can attest that it's truly a week's worth of food.
If the concept intrigues you, personally I'd recommend giving it a try. You can either order one week's meals or sign up for a weekly subscription, so trying it out once is easy to do.