Installers were professional, clean, and efficient. My gas shutoff valve was out-dated so I had to replace it with a current ball valve style so something to observe ahead of time. The oven design is a pleasing new style look and all four burners light instantly. They are also different BTU-sized for more efficient cook top placement from a small sauce pan to a large frying pan or pot. The burners are also sealed better which should keep spills and overflows on top for easier cleaning. The inside oven lights and heats quickly. It lacks a digital clock/timer which my old oven had. It is slightly narrower than my old oven leaving a little more gap between the counter top but not unsatisfactory.