I have a friend with ADD worse than mine. The technique is a godsend to them and they credit it with getting many projects done. I think this is in part due to needing to think through the problem and break it into smaller pomodoro sized chunks. I suspect the exercise of breaking the problem into smaller chunks also helps them understand the problem better.
I only use the technique some of the time. I find the same results as above when I do. When I use the technique I don't use a sound alarm as I find it breaks my flow. Instead I tend try to break work into 20m bites, giving myself a 5-10 minute grace period/break. I try to get up and stretch at the 25m mark, then get back to work. It helps my focus on long slogs, and my health has also improved since I am no longer doing the 4-6h without moving from my chair anymore.
I only use the technique some of the time. I find the same results as above when I do. When I use the technique I don't use a sound alarm as I find it breaks my flow. Instead I tend try to break work into 20m bites, giving myself a 5-10 minute grace period/break. I try to get up and stretch at the 25m mark, then get back to work. It helps my focus on long slogs, and my health has also improved since I am no longer doing the 4-6h without moving from my chair anymore.