I don't have anything bad about this product because they are very helpful with my business needs! They help me manage all our emails so we can keep up with them easily through their platform which is great for marketing purposes too!! Very easy software but sometimes you may need your tech guys if there is an issue with something that does not run smoothly like some other products do? So take time out of learning how to make sure everything runs smoothy! You will be glad when the customer receives what they want without any issues from the sending end! We send many different types of mails (email campaigns) such as newsletter subscriptions, event invites, etc.