for first this is great plugin! I hope will be in future "integrated" to wordpress core.
Last version (1.9.3) changes (disables) second best feature from previous version. It was style inheritance from site. When the page section like content, title, meta and etc have been edited it takes actual style/design from page and use it in content editor. This was great because about 99% style of edited content was same for actual editing and after save.
Didn't you think about use buil-in TinyMCE isteal 3rd party content editor ?
Thanks for answers.