It works moderately well. It's incredibly convenient to have sshfs on Windows.
https://github.com/billziss-gh/sshfs-win
Download binaries from here:
http://www.secfs.net/winfsp/download/
[Nothing against C# BTW. I used it for years while employed at MSFT.]
It works moderately well. It's incredibly convenient to have sshfs on Windows.