Being used to editing all my pages in Source Mode, the new Visual Editor has been a pleasant surprise, now I can easily see the live preview of edits to templated pages. It's been nice to lose all those little puzzle pieces on my pages.
I would suggest one minor improvement though ... when stepping back into Source Mode to quickly find (and edit) something, it would be nice if that view used a mono-spaced font.
Or, possibly have a Tab to switch to Source Mode instead of having to scroll to the bottom of the menu? Similar to the previous WYSIWYG editor where we had tabs for either Source or Visual editing?