From a customer
Interestingly, the hipchat notifications sent by BitBucket are not as good as those sent via GitHub. I've noticed the following issue: where the messages that say "User committed to None at team/repository" - I'm not sure why it comes through as None?
Also, in comparison to GitHub, the messages seem pretty sparse. There aren't notifications about branches being added or deleted (that I have seen), or code being stripped out. No notifications about pull requests or comments. The info that appears in the bitbucket recent activity is much better; but it would really be nice to have this same stuff be pushed to hipchat.