Incidentally, effect check is quite cool. It's a weak suggestion, but I'd look at bringing the "live demo" call to action to a more prominent homepage location. I had to search around a bit to find out what exactly was going on and how it worked, and once I did it was easy to use and kind of cool.
That's a really good suggestion. The live demo was a bit of an after thought on my part. I bought the design from Theme Forest, customized it, and launched it in a few days, then realized it would be good to see the tool in action somewhere.
We're kind of pivoting towards a more dashboard-style product for professional, highly-paid writers (lawyers and speech writers mostly), and once I'm done with that we'll certainly have a cool live demo ready. We'll also probably release a scoring API with free and for-pay rate limits, since developers have already shown some really creative applications [1, 2] in our hackathons.
