We recently were at the same crossroads (choosing between "github" v/s "bitbucket" v/s own-hosted git repositories). I ran through the various options for own-hosted git repositories: (1) Gitlab, (2) Gitolite, and (3) Stash (10-user license for $10)

We ended up installing Stash as it seemed that it would reduce administration+maintenance by a tad bit (GUI + knowledgebase) and would be supported by a company responsible for bitbucket. Stash has been a pleasant experience so far.