It does what it promises. Its name is a guarantee. I bought it because it is Miele and I did not regret it. At the same time, I bought two other products because the oven was terrible, it needed to be cleaned immediately, and I didn't know which one would work. I left it for two hours to work (even more if you leave it longer) and then, with enough scrubbing, not as much as with other products, ALL the burnt fats come off. It doesn't burn your hands, like other products, it doesn't smell, it is powerful, it is fantastic!!!! I also tried the other two and burned my hands, eyes, nose. Wear gloves and a mask for your nose. If the burnt residues persist, repeat the process.

Amazing product! Don't waste your money on similar products. There is no better one! Put it on at night in the oven and on the grates on all metal parts. And remove the grease in the morning. You will think you bought a new oven!