I love how easy it is to use this software! It's constantly updated and has great customer service as well. Nothing at all! Great product! My only issue is with the fact that sometimes when you're in the middle of something and need to go back or change something, you have to close out your browser which takes time. This isn't too big of an issue but can be frustrating. Use it! It's a great tool and makes my work much easier! I'm able to send out mass emails to our readers that include links to articles and blog posts. It also allows me to track sales and analytics.