Lol, I have a twenty year old dishwasher that gets the dishes clean 99.9% of the time. It's dead simple and easy to work on. We are probably going to replace it because the plastic face of the control panel is crumbling apart and the old plastics are getting to be a strange shade of pale dirty death. I'm convinced that msotbthe money spent on high end dishwasher is 95% cosmetic. I will say that Technology Connections video on dishwashers improved my dishwashing game. We have soft water and pods left a sickening residue smell that only I noticed but I also drink more plain water from glasses than the rest of the household. Using powder and a rinse aid got rid of that smell.
I learned from his videos that it’s uncommon for US dishwashers to have automatic salt and rinse aid dispensers. I don’t know it it’s the be all & end all, but those two dispensers + never using pods + useful baskets and guides mean I have never had an issue with my Siemens that wasn’t because I loaded it wrong.