We like our 2012 Kia Sedona that we bought in 2014. We're about to roll into the 100,000 mile range, and it's been good to us. We replaced the shifter assembly, and had some HVAC work done to it. Other than that, just normal battery tire & oil change stuff. Oh, and the rear window wiper is so expensive we just pulled the fuse for it. It's surprising how little we even miss it.
When we bought it, we were also going to look at a Mazda 5. We had only 2 kids, but now with 4 we feel the Sedona has been a much better fit. It doesn't get the best mileage, but we make up for it by living close to most things we do.