I just wanted to let you know how much I have enjoyed and continue to appreciate your company. It has been a blessing for saving hours upon hours of personally dealing with e-mails and has turned out to be more affordable than I thought.
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 think this is an excellent way to acquire paying customers AND will give many potential users the option to see if they can build a decent subscribership without having to front the $250 or more that would be needed for ListBuilder.