Cirrus Insight started being used by our whole department about a year ago. We started investigating ways in which we could directly link our Outlook email system to our Salesforce
system. We had been using the free email to Salesforce
option, but found it clunky and not very useful at the time. What's great about Cirrus is that you link emails to particular contacts, organizations, projects, and other files/records that you and the organizations might have created yourself. It's very fluid in that way. It can also include any email attachments (you just have to select a checkbox, it doesn't do it automatically). So, it became a great solution to a problem we have been encountering for years. However, in the last month or so, I have removed any Windows users from the account due to technical glitches. As a Mac user, I had many technical glitches as well, but they seem to have been resolved. Theirs are still pretty ongoing- downloading it as an add-on into the Outlook system really messed with it overall and our IT manager didn't recommend it. Therefore, they have decided to revert to the free email to Salesforce
option (which apparently has been improved).