For your information, I have switched from Microsoft BCentral to your company because of your prices are almost 2/3rds cheaper that them. Keep your prices low and I'll be a customer for a long time. The fact that mailings can be scheduled ahead of time is also great.
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 haven't found anything as easy and well structured ever!