Actually, it's currently a 'beta' feature while we continue to expand the breadth and depth of WSL's syscall implementation & supporting tools.

That said, WSL is now far, FAR more compatible with the majority of mainstream dev tools than it was in Anniversary Update or early Insider builds.

Don't take my word for it - I am biased ;) - but if you've not taken a look at WSL in 2017, you might be surprised by how much now works very well :)