One I know of, the service is so limited, it's not worth it. Free phone consultation. ONE free letter one your behalf IF (BIG "IF") you AND the attorney BOTH agree it's necessary. A simple will.
Does not include any court appearances or even additional calls or letters on your behalf, no real representation of any kind. One in-person consultation if the attoney thinks you need it. Maybe one review of a contract.
If that's needed, there are "negotiated" rates that seem to be no better standard - 33% of on contingency and I can't remember if they actually quoted an hourly rate, I think that would have to be negotiated.
So if you got sued or thrown in jail, what good does it do you? Nada, zip, zero.
Nolo Press has good self-help make-your own will books, though they were getting nailed by the state of Texas for "illegal non-attorney practice of law" or some such BS for just publishing their very good books - don't know if that got resolved or not, must have been based of complaints by a FEW TX attorneys who hated seeing people getting any kind of basic help for themselves. Kinda like one thing that led to the Protestant Reformation - the priests keeping a stranglehold on scripture.
For the most part, I think this amounts to YOU paying for a referral service, which you can get for free from the local bar association,---- and typically the professionals are the ones that pay the services like 1-800-dentist to get referrals.
Many if not most NON legal-service- plan attorneys will give you a little free advice to see if you really have a case or not, and also will do 1/3 contingency on PI cases. If you get sued or face criminal charges or have a family law problem, NONE I know of in or out of such plans will work on contingency for that -- after all, they're trying to earn a living like the rest of us, and they have to get paid by the hour or on a flat case rate. In these situations where they're not able to try to recover money for you, what is there to get a percentage OF?
So, while it may not be a total scam, in that you do get minimal services, you don't get much for 30 X 12 = 360 per year.