Per UK Guardian: Nutrisystem is the fastest growing business in the US

[KurtNYC]

and I hear it sucks.

I ordered Nutrisystem on March 18, 2007. The food was delivered to me about 7 days later. I have never seen so many powdered entrees in my life. Not at all what I expected. Powdered eggs, powdered mac and cheese, powdered soups all in containers as those ramen noodles come in. The taste of the food is horrible.
...
Like other posters, I received my NutriSystem, only to find that the packing slip didn't remotely resemble what I ordered, and what was actually in the box didn't remotely resemble what on the slip. They just filled the box with the stuff that wasn't moving.

http://www.consumeraffairs.com/nutrition/nutrisystem.htm

Are those complaints true and if so how can they be the fastest growing business?

Guardian article: Hot dog diet firm leads table for fastest risers in US
http://www.guardian.co.uk/usa/story/0,,2162469,00.html