I have used this product for over two years now, and it has been nothing but fantastic! The team at Semcast is incredibly responsive and helpful when issues arise. Their support staff are always available via phone or email to help you solve problems. There isn't anything that I dislike about their service as far as I can tell. It's great for my business needs, and they've made it easy to implement into our system. We're able to target specific segments of our audience in order to find new prospects who may not be using other services like ours.