Joule, from an engineering standpoint, is a fantastic device. After well over a year of near daily use, Joule still rapidly heats large quantities of water and only asks to be occasionally cleaned in a water-vinegar solution. The quality is outstanding. My biggest gripe with Joule is that since my purchase, Chefsteps seems to have greatly decreased the rate at which they publish guides and recipes. Obviously, Joule works plenty well without a Chefsteps published recipe, but part of my decision to go with Joule over a similar circulator device was I believed in the Chefsteps ecosystem. On that front, I have been disappointed. Despite this, I would still recommend the purchase of a Joule if a person had interest in Sous Vide cooking. The product quality and durability outshines any issues I have with Chefsteps and is certainly worth the cost.