After reading the views of many people and my own experience about induction cook tops. I suspect there is an inherent flaw in the very product and hence it is unreliable. It is not simply the brand that makes the difference. While the performance of industrial induction devices(like induction furnace) are excellent, domestic appliances are not fully developed.
I have come across four cases, including mine, where all the units of different brands failed within seven months. Please note induction cook tops do not work like coil or gas stoves. Its heating efficiency drastically drops within a short period of time. I strongly recommend prospective buyers to differ their purchase decision or buy other gadgets like coil stoves or microwave ovens.