Bests & Worsts Reviews from Amazon

Last July I purchased an Ozeri ZK12 from Amazon. During the first week of December the unit failed and would not function at all. Up until this point it worked perfectly. I contacted Ozeri customer service and received a response within a day or two. They said they would replace the unit with a new unit at no charge. All I had to do was provide them with my Amazon order number, which I did. A new unit arrived about 2 weeks later and is working as intended. I am very pleased with the unit and the quick, hassel-free response from the vendor.