When WSL works, it works like a dream. However, there are so many ways to break it unless you are running a pretty much bare wordpress site you'll have issues at some point.
It would be one thing if the Dev was responsive, or if the user base had enough PHP devs to help but support seems lacking. I understand that this is a free plugin and it's really just a hobby for the Dev. Still, if you develop something like this and put it out there I think you have a responsibility to support it.