I like that it has an in depth knowledge of what you need to do with your website for SEO purposes as well as customer service options available if needed! The software can be complicated at times especially when there are issues or changes made but their support team will help guide through any problems very quickly so all isn't lost right away!! Definitely look into this program before making decisions because they have many features which may not work perfectly out off hand without proper research first. We use GRSys primarily used to manage multiple websites (website management) we also utilize them for our email marketing platform along side MailChimp & AWeber services provided by GroupWise Server from Microsoft Corp.