Pros
A great culture, driven by solid values. They talk a lot about the values during your interview process, I thought it was all just there to impress candidates - turns out Atlassian truly lives up to each promise they make. Bengaluru office is a great piece of real estate with free gourmet catered food (breakfast, lunch, dinner - the whole nine yards). Good hardware provided to work with, open hierarchy and no politics are some of the top pros.
Cons
If you are a late night person like me, you might miss out on meetings with Australia folks a few times, since they are early morning. This is not a big con though, given the timings are generally flexible and WFH is a real option. Commute to outer ring road is a bit of a hassle, after moving from Koramangala and Indiranagar - but well, this is BLR! :)