I’ve only used it a few times now but my biggest complaint is the layout of the burners.  It is uncomfortable having to lean over because the way everything is positioned, the is the only way to cook.  Also, I don’t understand why sometimes it makes loud noises and sometimes it doesn’t.  Last thing I’ve noticed, the pans with the induction bottom tend to move around a lot.  It looks like there are covers you can get for the burners to help with that but I can’t find any with good enough reviews that don’t mention someone ruining the cooktop or stinking up their house.