I'm using it for a month now, stainless steel top gets scratches soon especially  on the knob . I dont like it make looks old soon and also the rubber stopper used for the grates on the stove top moves quicly whenever I do the cleaning most of the time it gets lost &this brings scratches to the stove top. I'm not really happy about it.Attaching the picture of the knob & the rubber which went missing while cleaning the stove top.