I like that it is easy to use, simple interface for all of my clients. It's also very customizable as well with ease of editing templates/elements once you get used to how things work. There are some bugs which have been reported but they're being worked out now. We've had success by using this product in our business where we send emails regularly to customers about their account status or upcoming events. This has helped us keep up with the amount of communication going around within our office and with our customer base.