This is an inferior research tool run by a company without ethical principals. Not only are they quick to bill, they will not refund in full when challenged.
If you subscribe, watch your credit card statements because they will automatically bill without notifying you. Automatic renewals, they claim, are preceded by ONE email notification, which I did not receive. I had subscribed for one year and found their product virtually worthless. I never intended to renew and was shocked when I saw my statement with a $299 charge.
They refused a full refund.
This is a company with a product so insufficient they feel they can make money by scamming subscribers who wish to cancel. Avoid at all costs.