[kajika91]

I prefer looking at benchmarks : https://towardsdatascience.com/the-best-format-to-save-panda...

I have used Arrow and even made my humble contribution to the Go binding but I don't like pretending it is so much better than other solutions. It is not a silver bullet and probably the best pro is the "non-copy" goal to convert data into different frameworks' object. Depending of the use for the data columnar layout can be better but not always.