Samsung top of range appliances worthless

I purchased a Samsung Watewall in 2016. Shortly after the DW got out or warranty, we noticed the dishes at the bottom rack are not being cleaned properly. I have contacted Samsung CS requesting assistance. I will spare you the details of the rude b***h from Inyati calling me and will go straight the 2 "technicians" who after an hour of looking at the DW from each and every angle, decided to take the appliance to the workshop for "a day or two." Almost a week later, after 2 follow up calls, finally the dishwasher was returned to us. When I queried what the issue and solution were, one of the "technicians" rep**** they just adjusted the rinse aid dispenser. Needless to say, the bottom rack still doesn't work, we wash out pots using the middle rack. Its a great business model for Inyati R450 for looking at a dishwasher and adjusting the rinse aid dispenser. Our home only has Samsung appliances but seems like we will be moving to a different brand. I understand the DW is out of warranty but have paid double the price of most dishwashers on the market, we would expect it to last bit longer.