The ease of use. It's incredibly easy to use for day to day operations when you're not having technical issues. There are a number of add on modules that provide additional functionality such as document management. I highly recommend this software; there's nothing about it that makes me dislike it as much as some other software out there. We've been using Corrao Group for several years now and haven't had any problems or glitches. We use the CRM to help keep track of daily tasks for clients and their projects. This has proven extremely helpful for our organization.