Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This product was defective

I installed it. It didn't work. I had my handyman look at it. Didn't work. I had to find someone who works on fireplaces. He came out and it turns out that the "board" in this box was bad. He charged me $165 for the entire trip. I tried to reach out to Amazon to tell them they should at least pay the $40 that was for the board ($125 service fee), but it's been too long and they won't do anything about it.To be entirely forthright, the fireplace man said that he loves Skytech but about 1 in 7 of these boards does not work. Maybe that's why he loves them....