This range takes a bit of doing.  The first thing is I would not have purchased it had I known the care and upkeep woes.  I'm old fashioned.  Used gas and coil type electric ranges.  This one is different.  On the up side, it's simple and attractive.  It does heat stuff but you have to get used to it.  That's ok too.  It's the upkeep.  The first thing that happened is a bit of aluminum foil got welded to the glass cooking surface.  I tried a razor blade - little success.  The surface stains and scratches easily.  Hopefully it and I will work it out before I need to buy another range (but a more forgiving one).