Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Extremely Poor Customer Service

Paid $300 for this clock radio. The radio does not establish a solid connection with its power supply, causing it to "drop out" frequently. A joker named Ron in customer service confirmed that they have seen this problem in a number of units but otherwise was completely unhelpful (as well as rude). He said the company could fix the $0.50 part for a $75 fee. I have two other Tivoli products. I've always thought the sound quality was good (for what they are), but I will never purchase another Tivoli products. There are lots of companies out there that are producing quality products backed up by good customer service, so there's no reason to roll the dice with Tivoli. Good old Henry Kloss would turn over in his grave.