I have not seen any reviews on the 2020 JA Roby Polaris. So far I like the stove. It's much easier to load wood in than my old stove. It also puts out more heat. My concerns are that the top steel is a bit thin (3/8 inch) and the some smoke comes out the door when stove is cold, but that's normal. When I first got the stove I realized the ceramic blanket wasn't big enough to seal the baffle and the stove wasn't very efficient (smoked) because of it. After adding more ceramic wool around the baffle the stove now burns very cleanly and efficiently.