We're using Phabricator at my company, and I'm getting to the point of encouraging people to use it and start seeing the benefits. I work on infrastructure, so when people come to me with issues, I find out what problem they're having and then get them to submit a ticket to me. I've also started creating tickets for issues and assigning them to other people to get them to take a look at it, and people seem pretty receptive.

It hasn't become part of everyone's workflow yet, but it's pretty useful.