We replaced an older 4-burner Frigidaire cooktop with this one.  The new one has a much finer range of control on the amount of heat it delivers.  People have complained about the height of the grates, but it is not an issue once you use it for a bit.  The center burner does heat a pot of water very quickly.  Simmer burner is very low and works great.  Only issue is that the minimum install width does not give you room to get the brackets in easily if you have a thick countertop.  Easy enough to rig a different connection though.