I have converted my team to Jira and Confluence. There is some initial learning curve, but if you select a subset of the features, and train / document how you expect each tool to be used, they will provide a net benefit to your team.

A friend of mine was at a company that was using JIRA, but they had no processes in place and ended up going back to using paper.

I think you really have to establish some simple processes to really get the benefit from these tools.

You can go overboard and try to require people to document every single detail every single day, but I think this is counterproductive. You have to find a balance.