Service and support is excellent! If you're new to email marketing (especially cold) and not entirely sure how or where to start, I highly suggest you check them out. We have been doing opt-in email marketing for a couple of years now but always knew that there was a larger untapped market out there, we just did not know how to get a piece of that pie.
Tip for consumers: Be patient and talk to their support team for advice. If you implement their ideas, you will see success.