We replaced old unit that circuit  board for oven stopped  working, since is only 27in drop in had no other options, stove is tiny and had to adjust to size not all our cookie sheets fit, wish it had 2 large burners instead of only one. Would have been expensive  to put in 30in oven, would have had to move cabinets. Works great original overn was in house built on 1972, so lasted long time.