I have an 8-yr old Frigidaire smooth top that I love, love, love. I have yet to see any scratches or cracks. I also use Cerama Bryte and it works great.
Gutmutter - to use my oven I push the Bake button and the screen displays - - -. I then push a button with an UP arrow and the temp increases starting @ 350.
Columbia - I'm jealous. Your oven sounds awesome!