I'm pretty stunned at how well your service works -- it's easily one of the most intuitive applications I've ever used. Most important, it seems to work! It took me only about an hour to get a newsletter through the test point. My highest compliments.
Just wanted to drop you a quick note and say thanks for pointing me to your excellent service. I'm pleased with the results and am relieved that everything worked so well. One less thing to worry about!
I would like to say that your service is unbeatable compared to your competitors.