One of the heating element was partially burnt (part of the inner most portion does not turn red). I call this company and ask for a quote to replace this parts. But the customer service insist to send me a technician and the fee is $80. (not even with a quote). Techinican arrived and suggested a kind of 'no parts replacement' repair and the cost is $280. In fact, it was only an inspection and took less an one hour. Finally, he confirmed that this part needed to be replaced and the addition cost is $350.
The total cost ended up over $600 and I can actually buy a new range with this sum.
Finally I paid the only inspection cost but refused to replace the element.
It was a bad experience. I shall reluctant to repair any appliance in future espeically with this company.