Very good price / quality of the product, with free shipping from Amazon, and more. I had in the past a similar article but smaller in size (30cm in reality was only within diameter 28cm) and another larger (40cm). This article, with an internal diameter of 32cm, provides for me, the ideal size for applications for everyday use one, two or three presonnes. The thermostat is working properly, so I had bad experiences in the past with devices that warming too, is not enough. The manual focuses on the essentials, just three small pages per language, which I suggest you read if you do not have experience with this kind of devices. Eliseo M. ALVAREZ. Clermont-Ferrand.