Bundle support in geometry nodes is huge for complex pipelines and workflows, particularly when combined with lists and closures. I have been running on the alpha builds to get access to them in my workflows.

It took me a while to properly understand it, but it's genuinely great. It maps so much more of what I expect from traditional coding, scripting etc into the visual paradigm and makes an awful lot easier to use.

Also, should out to databpy and nodebpy, both of which are indispensable and make using nodes and blender so much nicer:

https://github.com/BradyAJohnston/databpy https://github.com/BradyAJohnston/nodebpy