You can almost do everything with Axure (design, interactions, web preview...)

I like the many features that it has in widget form. I also really like the user interface. Even though there are lots of different features, the style and layout of the program makes it a lot easier to maneuver and navigate through

The ability to create an html prototype that can be sent to Business Units for them to play with and provide feed back. Not too hard to learn on the job, without formal training. Plenty of help with support and on the web.