FocusWriter does offer a distraction-free writing environment. You can enlarge the writing area to block out your whole screen (or not) and you can choose what sort of color or picture you want in the background (sort of like a Desktop?) while filling the rest of the page with your marvelous gems of wisdom. However, beyond these features, FocusWriter is nothing more than a very simple text editing program, not even better than TextEdit.
You can choose what sort of font you want and the size: good. You can change the color of your writing page: good. You can even set daily goals for yourself in terms of word count and time: both good. Automatic saving is possible: good. However, there is no formatting ability: bad. Files are saved, yet I didn't get to name it or even find out where on my computer it is: very bad. Does it only save one at a time? Where are they? Where? What is the point of this?
Also, it seems to have problems running with other programs at the same time. Alone it works all right, but it still doesn't register the words as I type immediately. Yeah, that's not a good thing!