Atlassian has become much less of a caring company since they’ve gone public (or are preparing to). They’ve completely ruined SourceTree on Mac (an unnecessary interface redesign that took functionality away which still hasn’t been fixed almost 9 months later) and have been very careless in HipChat iOS client’s updates (shipping crippling bugs and not fixing them). They also used to be very friendly to feedback on Twitter but now are completely silent and don’t help or comment at all. Atlassian might’ve been a good company at some point but they aren’t any more. I’d rather use a fully open source solution that is mostly developed in the open (GitLab) than to be locked into a proprietary package (GitHub) or a downright user-hostile option (Bitbucket).

+1 for BitBucket - I'm using it without any problems for many years!