We really don't have any strong issues with the new cook-top, what stopped it from being Excellent is the fact that sometimes the touch controls do not recognize that you have touched them.  Not sure if this is a temp of the finger/cook-top or what it is.  This can be frustrating.  Another thing that has happened to us on a couple occasions, when you have multiple burners on and have been using them for a while, all the lights will start flashing and the cook-top beeps until you go through each burner and reset them where you want them.  I have not found that this is supposed to happen as a warning that your burners have been on for too long or something.....this should not be an issue as some people cook for a full day.