Does what it is supposed to do.
One little problem - the icon wasn't showing up. I went to the support site and they had the suggestion to point to http://w.sharethis.com/images/share-icon-16x16.png
which i did and it showed up.

i had 10 sections and the same 15 categories per section. I tried to use this and it did some things well - it is able to create the categories, and the menu items, but only once per section, so i had to type the categories in each time.
The downside is that several of the menu items for the categories were either a forum, newfeed, or somthing that did not correspond to the 2 choices - so i had to go in and edit each one again.

What might have been a better approach could be creating the first set and "copying" each item with the appropriate menu selections.