I have used quite a few different services of your kind, and I think yours provides the most value for the money of any I've seen. Great tool!
I just started my first email campaign for our warehouse sale that we do twice a year. This is really great!! I even cut and pasted the signup form onto our website, saving one of our participants hours of time receiving emails and adding email addresses to our in-house list. Wow! I love you guys. Where do I send the flowers?
...so easy!!