I purchased the beef version of the Campbell's soup kit and honestly it was completely pointless.
By the time I had added my own broth, my own meat, my own veggies, and my own seasoning I was left wondering what I actually paid for? The "barley" it came with was so sparse that I ended up adding in macaroni to bulk the soup up. The seasoning was so bland that I had to make an entirely new batch of seasoning just to give it some flavour. I also added in beans to give more to the soup as the recipe it gives you to follow said it only needed mushrooms and spinach. If I had followed the kit's instructions I would have been left with nothing more than a bowl of flavourless broth with a few bits of food floating in it.

The finished product after making this kit was a soup I had made on my own. I added carrots, potatoes, more meat, more broth, a lot more seasoning, macaroni, beans... It would have turned out exactly the same if I hadn't even bothered with the kit at all.