they are a big help for blowing downpipes and fan running along the runs but they can be a bit messy, the vac is my least used bit as it is difficult to control on the power pole but useful at the right times, the camera is great for time saving checking ally gutters etc as they usually only foul in certain places when birds drop seeds etc. the kit is a timesaver and is now featured in a hse dvd "making it safer, working at height"