I purchased this three years ago and is in use ever since without any problems or glitches.
The unit is very reliable and the burners & operating switches are working in amazing condition.
This needs minimum maintenance as well, like I clean the parts thrice in a month. My mother also uses this cooktop and it is such an amazing product, easy to use & very good in performance.
Hope to see it functional for a long time to come. KAFF cooktops are highly recommendable.
The design of the product is also very nice & it enhances the beauty of my kitchen.