Primary reason is to toast wide/larger bread slices and to bake frozen mini pizzas, taquitos, etc… 
The detailed instructions how to use product are not included and must be downloaded online!   In very fine print they tell the purchaser to initially use the unit for ten minutes on bake setting without any food!  This should be instruction number ONE! 
The crumb tray is NOT removable, this could be a safety issue as certain bread crumbs will get stuck and will not be able to physically removed by the user.