Draggable porlets which look cool and make you able to setup you desktop more flexible. These portlets on its own integrate very nicely with the rest of the site. You can use the grid controls to setup sizes for portlets. And all the normal style options are available in the boxes.
Rearanging your portlets has no use if you have to do it over and over again. That is why Admin Intenso saves the state of you portlet. You reposition everything the way you want it and hit refresh. What you will see that the desktop is remembering where you placed the portlets.
All these boxes contain a set of buttons the button on the far right is the close button. Which can be used to close the box. When clicking the button you only need to confirm or cancelled. Also here AdminIntenso offers the option of storing the state of closed boxes. So next time you refreshed the boxes are still removed from the page.