We have begun to migrate over to this from vTiger. We're currently using CRMery for 3 of our companies (just migrated over from vTiger). Not only is it fast and easy to configure, IT PLUGS INTO OUR AcyMailing system!! This module is allowing us to create our own private Joomla Sales, Marketing & Follow-up system to help us communicate more effectively with our client base. Our entire sales team gives it 5 Stars- this is a MUST have for any company or small business owner who wants a great Customer Management Solution.