I saw one of its blurbs and wondered about it. So I Googled "RegCure review". Found at least 10 or 12 sites all purporting to review a handful or registry cleaners, all saying about the same thing, namely the others are good but RegCure is the greatest. Even without the curiously similar looking pages, my nasty suspicious mind cried FRAUD.
It found 1766 "errors" on my PC and fixed 4. Offered me $10 off, it would cost $29.95 - which I think is actually the regular price.
Even if this were a super piece of software, no way I would buy from a company with such shoddy practices.