I must say that I am very impressed. I use CF7, with the CF7 DB, the CF widget as well as this plugin and I have no issues. Before I had spam using Google Forms. But one issue was outstanding moving from Google Forms to CF7; how to I get the referral URL.
And here's the answer. Great stuff. I am not sure I understand all the uses of this addition to CF7. But that answer will come later ;-)