After much hesitation, I opted for the Klarstein Omnichef 30 L, black and stainless steel. This is a good quality oven that cleans easily, which was part of my criteria. Control buttons are solid and very pleasant. The oven is aesthetic and silent even in convection mode. It has different cooking method, including rotisserie and convection. It is very aesthetic. It is therefore all the more frustrating that it has a crippling defect for a furnace ... He does not heat enough! It has two very fine parallel resistors in the top and bottom. The space between the resistance is too high (the middle of the dish does not cook ...) and above all lack of power. To give you an idea, I have to almost double the cooking time which I was used to cook a chicken, a roast. Of course you can immediately forget the grill function ... In everyday life, it is frankly difficult, because you really predict its cooking in advance and preheating never ends ... It would have taken power 1500w and especially greater than an S-resistance, as is the case in many furnaces. The rotisserie works well, you can cook a chicken a kilo five out condition tie up the legs to the body, but again, it takes forever and you will struggle to have a well toasted skin. If you cook a fish, he will naturally be in the middle of the dish, except that in the middle of the flat, there is no source of heat ... Other default, the grid is too thin and widens with the weight of the dish, or it is not wide enough, so it just happens to fall! Very average with stews ... If you do that slow cooking, if you are a fan of candied, this oven is perfect for the rest it is an energy gap that irritates! I do not recommend buying this oven, check the performance of the model above (50l), maybe that one strength more in the middle and the 1700W change everything? But to 30L 1500w with these resistances so thin and poorly arranged, it is only frustration and frankly a bad buy because soon, I'll probably buy an oven to stop spending so much time behind this also aesthetic furnace be it! Shame!