Worked great! But then less than 8 weeks after purchase, small cracks appeared in the inside back wall and a piece flaked off! I don't know what it is? Is the rear inside panel painted? Very strange and disturbing. I am very disappointed because I really liked this oven ie. size and functions are excellent. I would have given this oven a 4 or 5 star rating but due to the faulty product I am very unhappy.