I gave GoZen Growth a long try. They had a very basic bug with the button feature in the email. I have been talking to their support team for almost a year and they are unable to fix it. If you try to add a button to an email the text gets dramatically distorted, re-formatted and the word "Button" gets added to the text you add. They continue to state that the bug is now fixed, when its not, a few months go by and they state they just fixed it. I am trying a different email marketing system because they can't fix this most basic feature in their system.