Anyone use UML's for Flash projects?

I am reading a new book and it suggests to using a UML, more specifically: StarUML for AS3 projects.

I’ve actually never used a UML. And was wondering if any veterans enjoy/suggest using a UML when processing the idea of your project. And also if you have any examples of past UML’s.

I’d love to see screenshots or UML files if you’re willing to share.

Any discussion is appreciated =].