I can add widget areas just fine and customize them and everything works great. Only problem is once I leave the widgets page and come back it just shows a blank white space instead of whatever I had saved in that widget.
The widgets themselves seem to work just fine I just can't edit tweak them anymore, I have to add them again and set them up.
I tried it with different default themes and with all plugins except woodojo and woosidebars disabled and it is still the same.
In the reviews of this plugin 2 people mention having the problem in the past, and one said going back to version 1.2 fixed it for them, so I hunted down that version and it did not work for me.