Looks interesting. If this is possible, I wonder why a driver for a much more common filesystem like ext hasn't picked of (e2fs driver does not count, that is ext2 only).
Ya I am using this and works with ext3/4 as well, but as you mentioned, there are some unsupported features. Unfortunately that means that it messes with some metadata or something and I have to run e2fsck when I reboot into linux. You can read about it here https://askubuntu.com/questions/849872/how-can-i-prevent-win...
Why do you also check the artifacts in?