Steps 5-9 are probably meant more for the coal industry, level 2 tans stage 4 blackens toast already on.
But otherwise, the unit works very reliably, even when warming up rolls. The integrated pad Grill is definitely a help, iGZ the usual stand-up bars that you only need somewhere to dig her.
All in all, I would buy the part again.
The only penalty: the outer wall is clear warm (to hot), so nothing for an environment with children. Therefore only 4 points.