Looks great! One note - I happened to have my screen quite narrow when I opened it and as the menu-bar wrapped around it obscured the "Import Chapter from Url"

Looks great! One note - I happened to have my screen quite narrow when I opened it and as the menu-bar wrapped around it obscured the "Import Chapter from Url" button. The introductory guide pointed to where it thought the button should be but it was just highlighting a corner of the "Feedback and Support" button.