I instructed at UND and a flight school in CA, both paid about the same but grand forks living is cheaper...but there were some big differences.
The maintenance at UND is great, you never have to fly broken airplanes, nobody pressures you to fly one, and they do fix them as fast as they can. I know the arrows are always broken, but at least you don't have to worry about feeling pressured to fly it.
Also having a division dedicated to just records is great, even though they can be a pain, it is a great way to make sure all endorsement and hours are met. Being all electronic reduces so many errors, smaller schools may use paper recorder keeping which can be a huge pain.
You can get health care at UND...which is a big deal to a lot of people, I don't think small flight schools offer this to you.
I enjoyed working for UND, and I know most instructors are eager to get out and just go anywhere, but if you keep positive, you will realize it's a great place to work.