Would be nice if they provided performant .Net wrappers around some of the more popular open source ML libraries (pandas for example), assuming that is technically possible.
Here's the 2,215 page user manual, to give you some idea of the power contained within:
https://pandas.pydata.org/pandas-docs/stable/pandas.pdf
They really serve two related but different purposes, I'm sure if you check it out you will be impressed.