I tried out Sendfox for a couple of months and overall it was pretty easy to use. I liked that it was easy to import my contact list and create different newsletters. However, I found the options for customization to be pretty limited. I would have liked the ability to change the background color for all the emails and add some more personalization options. Overall, it's a pretty decent service but there are definitely some areas that could be improved. 5 Tacos nevertheless!