Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Bad experience

I bought 2 of these. In the past, I've used Leviton or Siemons. The price for the Tripp Lite panels was significantly lower and I have never had any problem with Tripp Lite power products. None of the terminals on one side of the block (odd numbers jacks) worked. I could only get the pair 1 on each jack to pass. All others showed open. Had the same problem on both panels. Luckily, I only needed 6 ports at each site so I was able to make do. Even if the vendor would replace them, the time to go to the sites and replace them would exceed the value of the product. I will not use them again.