I’ve never worked on Kia Sedona brakes, but in doing the brake replacement work on 5 different vehicles that my wife and I own(ed), I find that doing brakes is a pretty straightforward process. The only thing that would give you trouble is if the rotors are attached to the hub in an unusual manner. They usually come right off the hub (if they are rusted on, a little radial hammering frees them), but some are pressed on somehow and take special tools.
I can replace brakes and rotors on any of my cars in under an hour, and it saves a heckuva lot of money! I’m so sold on DIY brake work that I bought a good air wrench and a better jack to make it easier. The tools cost me about what I save on ONE pad & rotor job.