I have never heard of this before and have no experience with it, but just going from what's been posted in this thread, I would be highly skeptical. If you're using it as a cheap legal reference for minor crap, I suppose it can't do too much harm, but if you're ever in serious trouble, I would advise getting a separate lawyer (or a public defender if you can't afford one).

The door-to-door sales thing combined with the "sell our insurance for money" makes it sound all the more sketchy.