Many people fear they have botched it because of the death throes, in which the bird moves violently. In actuality though, that is a sign that you did it right. I always immediately put them in a 5 gallon bucket. Keeps them cleaner if you are going to process them, and the movement is contained.
As a woman with a bit of arthritis in her hands, I use the broomstick. It is quick and done and not a lot of prep. I have also used the cone when doing meat birds. That what how I started.
It is the 'coup de grace' and an honorable part of animal husbandry. Personally I always feel relief, and it increases my enjoyment of watching my flock again. When I have reached the point, where I know this needs to be done and yet I hate to do it, well until I do it, watching them suffer because I haven't, is an ugly feeling.
Mrs K