Pros
I had four incredible years here and just finished up this week to move home to Europe... Atlassian will give you the opportunity to do the best work of your life and it really is true. Overall, a wonderful culture and 'Workplace Experience' team who look after and spoil you rotten. No company ever gets everything right but Atlassian really has heart. The Founders are incredibly passionate about what they do and you really feel like you're on a rocket ship. It's no wonder the company has been so successful. Couldn't highly recommend working here more.
Cons
Be weary of too much change management in succession e.g. in performance review, comp. etc. We are definitely trending the right way and for the better but ensure you're well staffed in the People Team so folks don't burn out.