I haven't used them myself because they are not available where I live. However, I have friends in other states that have gotten food though them and they have been happy with the quality of the food. What they offer is very high-fat meat intensive, so my friends find that they have to supplement with their own fresh fruits and veggies. It's also a large amount of food, so they are able to save quite a bit from week to week.
They do include some religious materials in the box, but you can just toss that out if it's not of interest to you. They don't push the religious stuff, it's just some reading material.