Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 5 stars until it broke...

the juicer itself is excellent and does exactly everything it is supposed to do. I found it easy to clean and it made great juice. But then the juicing screen broke last week and Omega's customer service is useless. If they even exist. No answers to my e-mail and they never answer the phone. They keep saying they are experiencing high volumes of calls please hold on and then finally they state to leave a message because no one is available. We only had it 6 months -that is ridiculous and we cannot find a juicing screen to replace it. So we just bought a Breville and I will see how that does. Do not waste your money - I am so upset that we cannot juice wheat grass anymore.