Needed a way to have custom sidebars for a hundreds of different pages for a project of mine and this plugin has been a godsend. Works out of the box and super easy to use. Tried Woo sidebars before this and it didn't seem as good, though it did work. For example, a widget export plugin I use wouldn't recognize Woo Sidebars widgets for some reason so I'm not sure if it is simply the way they coded it, however, this plugin works without issue when exporting and importing. Makes me think they coded it more to standards, however, I am not a coder so can't confirm this. Either way, WPMU's custom sidebar plugin has worked perfect.