My menu in admin was becoming a sheer nightmare. So many plugin developers label a menu item with simple text like Gallery .. doesn't help if you have 2 galleries and they are both listed as gallery on the menu... This resolves that issue alone by letting you rename them to the proper plugin name.
The other great thing the ability to move the menu items to areas where your more comfortable with them.
All that for free...
However, the idea that I can move submenu items to the top, and vice versa, thrills me with the pro version and just as soon as I have a bit of money, I'll support the developer by going pro..
An AMAZING plugin no one should be without.