From my experience thus far it works, but with a few major bugs.
I’ve found that it breaks the functionality of the “link/unlink” button in the new version of tinyMCE packaged with WordPress 3.9. The link dialog box will pop up when the button is clicked, but the formatting is completely messed up rendering the functionality useless.
UPDATE: I’ve tracked down the error that I’m having. It’s due to line 227 of dudaStyle.css (the line that sets form elements to display:inline). I commented that line out and it seems to have fixed my issue with the link dialog box displaying improperly.