I had a run through it when I came across it by accident. As long as you only take it as a helpful guide I thought it was really quite good. The suggestions it gave were consistent with what I knew on the subject already and it picked up things I'd either forgotten or accidentally done incorrectly. It's worth a read even if you ignore it.
That said, I already had a high score in it so I didn't see too many suggestions. I have no comparison on which to base what a good score is, but I stand at above 90% with few additional changes I can make.
Linear Mode
