Product review (4 stars): Good cooktop for the price, be aware you might need the trim piece which is sold separately!
We had an old (1967) 30" GE 4  burner cooktop that needed replacing. I was hoping that if I got another 30" GE 4 burner that I could just pull out the old one and drop in the new one. ***Almost.*** Because of the way the hole was cut (into tile) back in 1967, when we went to drop in the new model cooktop, there was a little bit of the hole edge exposed. There is a trim piece (~$85) made just for this problem. I had to order it special since it was NOT an in stock item. Took an extra 5 business days to come in. Overall, I am happy with this cooktop. It was something of an adventure to get it installed since it needed the trim piece which the cooktop sits on top of to be installed first. Had to use a portable hot plate for a week!