...having found your service by chance, we've been completely happy and pretty surprised actually. You offer a lot of features, with a very reasonable & logical rate system. ...How much your service will help is possibly beyond your understanding, but I'm sure you've heard that from other people using your service.
I love your service - it is easy to use and the emails look great. I have been getting a lot of compliments on the newsletter since I started using [Ezine Director].
It has always been a pleasure dealing with you.