Yep! I switched to Jira from an older in-house solution early this year, and have found it to be excellent so far. There's a little learning curve on the admin side, but the actual experience of using it for feature / issue tracking has been real positive.

A lotta folks I talk to have had bad experiences with Jira in a big-company setting -- say in particular, Amazon --- but most of those problems I've heard boil down to poor practices on the management / admin end, rather than problems with the software itself.

p.s. I've also used Asana and a few other less-costly solutions, but their limitations ended up getting frustrating.

yeah i've just recently started heavily using it for the first time in a few years, and it's not bad!

It has a fair share of issues (it's SO SLOW to do just about everything, and the text editor annoys me to no end!), but overall I think it's making me more productive and it's a lot easier to keep track of what i'm doing, what i've done, and what still needs to be done.

The old saying: Too many chefs spoil the broth. If you have multiple people with conflicting priorities the tool will be crappy.