on my german theme dKret i make heavily use of different sidebar widgets (7 so far).
They work very well BUT it is a hell to configure them.
In smaller Rersolutions it is not possible at all because in the admin area (Sidebar Arrangement), all sidebars are lined up horizontally. If you grab a Widget on the bottom and want to place it in the rightest sidebar, you have to scroll. But than you loose this widget.
it would be nice, if i could make the sidebars in the admin-area appear smaller in size (maybe same width as the Widgets at the bottom).
Hope i could make myself understood.