Thank you for the tutorial. Personally I'd be concerned about vacuuming the sides of the interior then moving to the sensor. It seems that would enhance the chance of dragging any foreign dust or even oils from the camera onto the sensor. It's too bad they don't include two vacuum tips. One for the sides and one for the sensor. Nice use of Google Glass in this tutorial. Maybe cut the picture in picture when you are using one camera or the other as it became distracting during parts of your video. It also took up a lot of real estate. Maybe just alternate back and forth using a fade?
Don't buy this. Made me scratch my camera sensor. It is so cheaply made I tried the vacuum and the brush had fallen out without me noticing it. And I started to clean thinking it was on it and scratched the sensor.