Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Edenpure disappointment !!!

Do not waste your time or hard earned money on an Edenpure heater. After I received mine it worked for a grand total of 4 hours. After I repackaged the defective heater and returned it, they tell me it will take 5-10 days for my refund to be credited to my account. Why should I have to wait for a refund? They sold me a defective heater. I should have read more reviews before purchasing junk from this mercenary band of thieves !!