I volunteer in a hospital cardiac wing, and work with loved ones who have had heart related surgeries several days a week, and certainly, pacemaker insertions are very common. We get feedback from the patients about their care, etc., and I can't recall anyone who said they had problems other that a sore spot on the chest, but almost all people with pacemaker insertions report greater energy and a better quality of life. I also have a pacemaker, and am feeling great.