I purchased a Triton Tank 2 weeks ago. It started having a burnt taste after 3 days. I've been back to the vape store for an exchange. I was informed that they cannot guarantee the product as Aspire notified them that they would not take back exchanges, etc. due to fraud. I've been having an email debate going on for some time with Aspire regarding my defective tank. I've done everything that has been asked of me from changing batteries, changing atomizers, changing settings, cleaning out parts, showing authenticity, show receipt of purchase, and even sending a video of defective product. I still can't get any one to be responsible for this. Their customer service is a joke.