SpamTitan is easy to use and the support is first rate. I never dread contacting TitanHQ like I do with so many other companies. There isn't anything that I dislike. I could say that the price should be lower but it is really fair and competitive.
I recommend stop waiting and give SpamTitan a try. TitanHQ are non pressure and their products speak for themselves. The free trials are the best way to check out the products and see how wonderful they are. Customers need a spam filter for their exchange system. Because of this we deployed SpamTitan.