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.
I can't tell you how wonderful you are. I was a COBOL programmer and to find this kind of responsiveness in tech support is amazing.
I have one ezine with talklist and I must say that your system is very much easier to use and quicker to set up....thanks for a great service and for making it FREE whilst we build our lists.