This is an amazing tool in soooooo many ways. I have been needing this for a long time now, it is good to see that someone else thought about it.

I already know the readability stuff will go medieval on me, just by taking a look at how it is calculated. I disagree with the very idea, since it seems to assume some kind of median reader. Readability means a lot of different things to people with different educations interests, AND contexts. But that is just a tiny detail that in no way diminishes the usefulness of this tool.

I am already excited to see what new metrics you will add in the future.