Smart Dispense not so smart

We bought GE profile appliances along with the monogram cooktop for newly built home last year. The dishwasher never quite cleaned the dishes right from the beginning. After a few months, we noticed that we should surely be out of detergent by now, but it was still almost full! Called GE and they came out in February and said our smart dispenser motor didn't work properly and replaced it. Worked wonderfully at cleaning dishes after that! Until now--6 months later it quit dispensing the detergent again. We are waiting for another technician to look at it. We follow ALL the recommendations and only used the same detergent every time--no mixing. We wash a full load every 2-3 days. The water hardness is set properly as well. Will we have to deal with this again in another 6 months when there is no warranty? I believe this technology is faulty. We paid a premium price expecting a premium dishwasher and it does not work properly. Other reviewers that said their dishwasher does not clean well--check the detergent usage--I bet the smart dispense does not work properly.