Edit article, select position in article, click on the "Module" button at the bottom of the article content edit pane, select the module you want to insert from the pop-up window and you're done.
Very simple to set up and to add additional form fields. During config it even identified a small change I needed to make to my template in order for it to work with this contact form as it should.
Good CAPTCHA implementation has reduced my spam as well. Another really cool feature is that all messages sent are stored in a DB for later review etc.
I love it.