I've been promoted out of my comfort zone. The first 5 years were fine with a nice balance of work. The second five years grew into a hellish muck of micro-management and pigeon holing me in tasks I take no joy in. In year 8 I knew I had to make a change and it took me 2 years to find a good match. Due to education benefits, I am trying to stay in this company.
15 mo ago I voluntarily demoted myself into a title I had 10 years ago into a new department and a location closer to home. The cut in my commute and the freedom in my day alone made up for the pay cut.
I hope you get this job! You surely deserve it and have the skill set to be in the running! But don't be afraid to define success and seek it outside the usual paths. If you get it and don't like it after a year, evaluate and work towards something else. Good luck!