I purchased 2 of their heaters on July 21 and it is now November 2. I noticed my tank temp struggling to maintain 76F at a 70F room temp (I'm heating 26g with two 75w heaters, 150w total for reference). I called their customer support line and after getting the run around several times, the rep flat out told me that "their heaters do not fail," that it was probably user error on my part. He then added that, "he had never seen one with an actual issue other than a bad led." I pushed them to replace it under warranty and was told that they were in the middle of moving, and that "all warranty claims were on hold" until they finish. The person who I actually talked to on the phone then instructed me to submit a ticket via webmail, and that after they were finished moving they would, "get to it when they could", but even then I would need to pay to mail the heater back for service, and they would not send me a new one for my tank. I was then instructed to purchase a 3rd heater from Cobalt to cover my needs while the warranty was being processed and asked if I needed help making the new purchase. What an absolute joke of a company.