I love this plugin. I was going crazy switching between the visual and text editor and having WP strip away my HTML. Seriously... I had to have a notepad open with my HTML so that after going to Visual Mode to use a shortcode or something I had to repaste all the HTML.
This solved it quickly and easily.
I'm only having success with the [raw]...[/raw] combo. No luck at all with the check box interface it puts on the editing page.
Either way - I'm a happy camper.