Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Rudy Sarzo

He may be able to play the instrument but he sucks as a teacher, instructor or guide to the instrument. He sits there mumbling and playing like he is trying to keep it a secret. The people who paid him to do this quickly realized he was just there for a quick check; and this was going to be the real piece of crap that it is . DON'T WASTE YOUR MONEY,I CAN ONLY WARN YOU ONCE> DON'T MAKE MY MISTAKE>