Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cooks great eggs; unit poor quality

I had a love-hate relationship with my egg cooker. Loved the way it cooked eggs but it was very difficult to clean. The poaching tray was terrible as it was impossible to clean. Supposedly it is teflon but it is not. I don't know what it is, I just know it's not teflon and egg sticks horribly even with butter. The inside aluminum tray for boiled eggs is difficult to clean and the paint or coating on the base unit started flaking off into the eggs. I used it frequently for about 3 years and threw away the poaching tray. The only way to actually clean it is to put straight vinegar in the base and let it run a cooking cycle. But then your house stinks of vinegar.Bottom line - great design, very poor materials.