This is a really useful little gem! It works as advertised, also with additional roles created with for example the Members plugin.
Great to use on websites of clients to clean up the backend and show the users only the options they need to manage the content of their site!
Adam was really quick to implement a feature request to include sub-menus, great support!
Thing to keep in mind for people interested in using the plugin is that it hides the menus of your choice, it does not disable the menus.