This plug-in has stopped ALL spam on my sites
It has totally stopped all spam on a site that used to get 100s of spam comments a day. Even Akismet struggled to keep up. I don't need to use Akismet any longer.
I also use Bad Behavior, Better WP Security and Limit Log-in Attempts on the site.
"People often say that motivation doesn't last. Well, neither does bathing -that's why we recommend it daily." - Zig Ziglar