[rafekett]

depends on what you define as good quality. it's efficient code, but it's sparsely commented, and a style nightmare.

[aruggirello]

Odd. If I recall correctly, there was even a detailed FB PHP coding style guide in the HHVM Git repo; that was afterwards removed though - I don't know why.

[marrs]

    sparsely commented

I already like the sound of it :)