It's surprisingly easy to set up and run, even with redundancy, integrates well with Jira, Confluence. Was fast enough, stable enough, had everything one needed (offered more than a hosted solution such as github). IIRC kept git completely separate, so it worked even during updates or restarts.

Disclaimer: I passionately hate Atlassian products, but I don't feel like using Stash/Bitbucket is a bad choice in any way.

I actually enjoyed BitBucket for smaller projects. They offered free private-repos earlier than GitHub did, so that was the main sellingpoint for me.

The self hosted version of BitBucket comes in at a pretty reasonable price. I don't know that for sure (and I can't check thanks to GH being down) but I'd imagine the self-hosted versions for GitHub Enterprise are quite a bit more expensive than Bitbucket or Gitlab.