I like that it can be used to create a profile for each of my customers, which allows me to send them personalized emails with offers they are interested in. It has been very effective at getting more leads from old accounts and bringing new prospects into our sales funnel. The software is extremely easy-to-use once you get started using it. There's nothing really bad about this product aside from maybe needing some training first. You should definitely give it try! We have seen an increase in leads generated by Send Hack after implementing their services.