I only have experience (personal and through a friend from another studio) of modelling departments transitioning to Blender and that part so far seems to be very smooth.
Rigging and animation… I’m not sure myself, more interested in other replies in this thread. I’d love to, I love FOSS and Linux and such, moving to blender for work could make it just a bit easier to daily drive Linux as well But so far I’m terrified at the thought of the amount of things I will need to re-learn, because of how deeply I got with rigging, scripting\tools dev and animation and vfx in Maya.
That said, after trying to write a couple tools for our studio for Blender I’m amazed about it’s Python API and documentation. It’s much more pythonic and intuitive than anything Maya can offer. What I miss is Qt, however, Blender uses it’s own UI library which complicates transition a bit more.