This app managed to do what my web hosting service wanted to charge $79.99 a month to fix (since they assumed I'd need round-the-clock protection). Now the malicious redirect script put on my site has been removed and I have a way to deal with it if it happens again.
The cost of the donation is well worth the product. People must remember, if people like Eli Scheets were not here, we would be paying far more for a product that expires frequently and costs many times more than your donation.