I just traded my '02 Sedona with 72000 km's and in all honesty I had 0 issues with it. The only thing I had to take it to the dealership for was oil, tire rotation and 2 safety recalls. Oh and yes the paint did start to peel off the front bumper at around the 35-40 k km mark but KIA Canada paid to have it repainted.
I traded it on an '05 Sorento and I am loving the KIA brand.