I had the opportunity to be featured on Good Company on WHOI Channel 19 (ABC). If you're interested in hearing a little more about the benefits of having your home ventilation system professionally cleaned, please watch this video.
Here's a video of the Spider Whip in action. I would recommend watching the last :30 of the video. It's really unbelievable how much dirt and grime this tool can get out of ventilation ducts.