It took a total of one apple (cut into 8 slices so as to fit in the small chute) and an equal quantity of grapes to derail this juicer. Upon my first use, I made an entirely yummy 8 oz glass of apple-grape juice without any trouble. I then switched the juicer to off and handed out a few dixie-cups-of-deliciousness to family members. Still quite thirsty, I prepared some carrot and cucumbers for another round and discovered that the juicer would not turn on. I tried pressing the trip switch. I tried cleaning every part of the juicer. I tried waiting a few minutes, waiting an hour, waiting a few hours, and I tried it again the next day.It seems the motor had inexplicably died.The omega 02 was returned the following day.I have to say, it was an extremely cute, seemingly sturdy machine and very easy to clean.Its inability to function after the extraction of a single glass of juice was therefore fairly disappointing.